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Solubilization of PET in binary mixtures of HFIP and DCM

The dissolution of polyethylene terephthalate (PET) is a critical step for a solvent-based process, yet it typically requires highly corrosive or toxic solvents. Here, we investigate the solubilization and conformational behavior of PET in binary mixtures of hexafluoro-2-propanol (HFIP) and dichloromethane (DCM) as a strategy to reduce HFIP usage while maintaining effective dissolution. Small-angle neutron scattering (SANS) measurements reveal that PET remains molecularly dissolved in HFIP/DCM mixtures up to 50 vol% DCM. Analysis of PET chain conformations shows a transition from Gaussian behavior at low HFIP fractions to more swollen chains at intermediate compositions, accompanied by a counter-intuitive minimum in the radius of gyration at 50% HFIP. Complementary SANS measurements of the binary solvents demonstrate that compositional heterogeneity is maximized at this same solvent composition, suggesting a direct coupling between solvent microstructure and polymer dimensions. Molecular dynamics simulations corroborate the experimental findings, revealing solvent domain formation, preferential solvation of PET by HFIP, and a “caging” effect arising from solvent heterogeneity that leads to polymer coil compaction. Together, these results provide molecular-level insight into polymer behavior in mixed solvent systems and establish HFIP/DCM mixtures as a promising, more sustainable solvent platform for the PET post-process.

Arifuzzaman, Arif [ORNL]↗

Influence of solution phase environmental heterogeneity and fluctuations on vibronic spectra: Perylene diimide molecular chromophore complexes in solution

Ensembles of ab initio parameterized Frenkel-exciton model Hamiltonians for different perylene diimide dimer systems are used, together with various dissipative quantum dynamics approaches, to study the influence of the solvation environment and fluctuations in chromophore relative orientation and packing on the vibronic spectra of two different dimer systems: a π-stacked dimer in aqueous solution in which the relative chromophore geometry is strongly confined by a phosphate bridge and a side-by-side dimer in dichloromethane involving a more flexible alkyne bridge that allows quasi-free rotation of the chromophores relative to one another. These entirely first-principles calculations are found to accurately reproduce the main features of the experimental absorption spectra, providing a detailed mechanistic understanding of how the structural fluctuations and environmental interactions influence the vibronic dynamics and spectroscopy of solutions of these multi-chromophore complexes.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗

Evaluating the impact of anatomical and physiological variability on human equivalent doses using PBPK models

Abstract Addressing human anatomical and physiological variability is a crucial component of human health risk assessment of chemicals. Experts have recommended probabilistic chemical risk assessment paradigms in which distributional adjustment factors are used to account for various sources of uncertainty and variability, including variability in the pharmacokinetic behavior of a given substance in different humans. In practice, convenient assumptions about the distribution forms of adjustment factors and human equivalent doses (HEDs) are often used. Parameters such as tissue volumes and blood flows are likewise often assumed to be lognormally or normally distributed without evaluating empirical data for consistency with these forms. In this work, we performed dosimetric extrapolations using physiologically based pharmacokinetic (PBPK) models for dichloromethane (DCM) and chloroform that incorporate uncertainty and variability to determine if the HEDs associated with such extrapolations are approximately lognormal and how they depend on the underlying distribution shapes chosen to represent model parameters. We accounted for uncertainty and variability in PBPK model parameters by randomly drawing their values from a variety of distribution types. We then performed reverse dosimetry to calculate HEDs based on animal points of departure for each set of sampled parameters. Corresponding samples of HEDs were tested to determine the impact of input parameter distributions on their central tendencies, extreme percentiles, and degree of conformance to lognormality. This work demonstrates that the measurable attributes of human variability should be considered more carefully and that generalized assumptions about parameter distribution shapes may lead to inaccurate estimates of extreme percentiles of HEDs.

Toxicology↗

Practical benzylation of N,N -substituted ethanolamines related to chemical warfare agents for analysis and detection by Electron Ionization Gas Chromatography-Mass Spectrometry

The benzylation of three, low-molecular weight N,N-disubstituted ethanolamines related to chemical warfare agents (CWAs) to furnish derivatives with improved Gas Chromatography-Mass Spectrometry (GC-MS) profiles is described. Due to their low molecular weight and polar nature, N,N-disubstituted ethanolamines are notoriously difficult to detect by routine GC-MS analyses during Organisation for the Prohibition of Chemical Weapons (OPCW) proficiency tests (PTs), particularly in scenarios when they are present at low levels (~1-10 ppm) amidst more abundant interferences. Our studies revealed that the optimal derivatization conditions involved the treatment of the ethanolamine with benzyl bromide in the presence of an inorganic base (e.g., Na 2 CO 3 ) in dichloromethane at 55 °C for 2 hours. This optimized set of conditions were then successfully applied to the derivatization of N,N-dimethylethanolamine, N,N-diethylethanolamine and N,N-diisopropylethanolamine present separately at 1 and 10 μg/mL concentrations in a glycerol-rich matrix sample featured in the 48 th OPCW PT. The benzylated derivatives of the three ethanolamines possessed retention times long enough to clear the massive glycerol-containing matrix interferences. In conclusion, the protocol herein is introduced as an alternative method for derivatization of these CWA and pharmaceutically important species and should find broad applicability in laboratories where their routine forensic analysis is carried out.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗

Materials Data on Sb2H10C3NCl9 by Materials Project

CSbCl2CSbH4Cl(H2)4(CHCl)2CClCCl2SbHCl2SbCl2NHClNH2Cl(HCl)2Cl2 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one chloramine molecule, one chloramine molecule, one chlorine molecule, one chloromethane molecule, two chloromethane molecules, one dichloroantimony molecule, one dichloromethane molecule, two hydrochloric acid molecules, five hydrogen molecules, one CSbCl2 cluster, one CSbH4Cl cluster, and one SbHCl2 cluster. In the CSbCl2 cluster, C+1.33- is bonded in a distorted bent 150 degrees geometry to one Sb3+ and one Cl1- atom. The C–Sb bond length is 2.13 Å. The C–Cl bond length is 1.67 Å. Sb3+ is bonded in an L-shaped geometry to one C+1.33- and one Cl1- atom. The Sb–Cl bond length is 2.44 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb3+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one C+1.33- atom. In the CSbH4Cl cluster, C+1.33- is bonded in a distorted tetrahedral geometry to three H1+ and one Cl1- atom. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. The C–Cl bond length is 1.82 Å. Sb3+ is bonded in a distorted L-shaped geometry to one H1+ and one Cl1- atom. The Sb–H bond length is 1.73 Å. The Sb–Cl bond length is 2.66 Å. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one Sb3+ atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C+1.33- atom. Cl1- is bonded in a distorted single-bond geometry to one C+1.33- and one Sb3+ atom. In the SbHCl2 cluster, Sb3+ is bonded in a T-shaped geometry to one H1+ and two Cl1- atoms. The Sb–H bond length is 1.82 Å. There are one shorter (2.50 Å) and one longer (2.86 Å) Sb–Cl bond lengths. H1+ is bonded in a single-bond geometry to one Sb3+ atom. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb3+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb3+ atom.

36 MATERIALS SCIENCE↗

Materials Data on P5HC(NCl6)3 by Materials Project

CHCl2P4N3Cl10PCl6 crystallizes in the orthorhombic Cmce space group. The structure is zero-dimensional and consists of eight dichloromethane molecules, eight P4N3Cl10 clusters, and eight PCl6 clusters. In each P4N3Cl10 cluster, there are three inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to three N3- and one Cl1- atom to form corner-sharing PN3Cl tetrahedra. There is one shorter (1.59 Å) and two longer (1.60 Å) P–N bond length. The P–Cl bond length is 2.04 Å. In the second P5+ site, P5+ is bonded to one N3- and three Cl1- atoms to form corner-sharing PNCl3 tetrahedra. The P–N bond length is 1.54 Å. There is two shorter (1.99 Å) and one longer (2.00 Å) P–Cl bond length. In the third P5+ site, P5+ is bonded to one N3- and three Cl1- atoms to form corner-sharing PNCl3 tetrahedra. The P–N bond length is 1.56 Å. There is two shorter (1.99 Å) and one longer (2.00 Å) P–Cl bond length. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the second N3- site, N3- is bonded in a bent 150 degrees geometry to two P5+ atoms. There are six inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the fifth Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the sixth Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In each PCl6 cluster, P5+ is bonded in an octahedral geometry to six Cl1- atoms. There are four shorter (2.17 Å) and two longer (2.18 Å) P–Cl bond lengths. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom.

36 MATERIALS SCIENCE↗

Materials Data on Sb6H3CCl13O10 by Materials Project

CH2Cl2Sb6HO10Cl11 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four dichloromethane molecules and two Sb6HO10Cl11 clusters. In each Sb6HO10Cl11 cluster, there are six inequivalent Sb+4.33+ sites. In the first Sb+4.33+ site, Sb+4.33+ is bonded to four O2- and two Cl1- atoms to form a mixture of edge and corner-sharing SbCl2O4 octahedra. The corner-sharing octahedra tilt angles range from 45–54°. There are a spread of Sb–O bond distances ranging from 2.03–2.13 Å. Both Sb–Cl bond lengths are 2.34 Å. In the second Sb+4.33+ site, Sb+4.33+ is bonded to four O2- and two Cl1- atoms to form a mixture of edge and corner-sharing SbCl2O4 octahedra. The corner-sharing octahedra tilt angles range from 45–54°. There are a spread of Sb–O bond distances ranging from 2.02–2.13 Å. Both Sb–Cl bond lengths are 2.34 Å. In the third Sb+4.33+ site, Sb+4.33+ is bonded to four O2- and two Cl1- atoms to form distorted SbCl2O4 octahedra that share corners with two SbCl2O4 octahedra and edges with two SbClO5 octahedra. The corner-sharing octahedra tilt angles range from 45–51°. There are a spread of Sb–O bond distances ranging from 1.96–2.45 Å. There are one shorter (2.31 Å) and one longer (2.33 Å) Sb–Cl bond lengths. In the fourth Sb+4.33+ site, Sb+4.33+ is bonded to five O2- and one Cl1- atom to form a mixture of edge and corner-sharing SbClO5 octahedra. The corner-sharing octahedra tilt angles range from 48–54°. There are a spread of Sb–O bond distances ranging from 1.98–2.18 Å. The Sb–Cl bond length is 2.34 Å. In the fifth Sb+4.33+ site, Sb+4.33+ is bonded to four O2- and two Cl1- atoms to form distorted SbCl2O4 octahedra that share corners with two SbCl2O4 octahedra and edges with two SbClO5 octahedra. The corner-sharing octahedra tilt angles range from 45–51°. There are a spread of Sb–O bond distances ranging from 1.96–2.42 Å. There are one shorter (2.31 Å) and one longer (2.33 Å) Sb–Cl bond lengths. In the sixth Sb+4.33+ site, Sb+4.33+ is bonded to four O2- and two Cl1- atoms to form a mixture of distorted edge and corner-sharing SbCl2O4 octahedra. The corner-sharing octahedral tilt angles are 48°. There are a spread of Sb–O bond distances ranging from 1.97–2.22 Å. Both Sb–Cl bond lengths are 2.33 Å. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three Sb+4.33+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to two Sb+4.33+ and one H1+ atom. In the third O2- site, O2- is bonded in a water-like geometry to two Sb+4.33+ atoms. In the fourth O2- site, O2- is bonded in a water-like geometry to two Sb+4.33+ atoms. In the fifth O2- site, O2- is bonded in a water-like geometry to two Sb+4.33+ atoms. In the sixth O2- site, O2- is bonded in a water-like geometry to two Sb+4.33+ atoms. In the seventh O2- site, O2- is bonded in a trigonal planar geometry to three Sb+4.33+ atoms. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Sb+4.33+ atoms. In the ninth O2- site, O2- is bonded in a 2-coordinate geometry to three Sb+4.33+ atoms. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to three Sb+4.33+ atoms. There are eleven inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb+4.33+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb+4.33+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb+4.33+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb+4.33+ atom. In the fifth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb+4.33+ atom. In the sixth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb+4.33+ atom. In the seventh Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb+4.33+ atom. In the eighth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb+4.33+ atom. In the ninth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb+4.33+ atom. In the tenth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb+4.33+ atom. In the eleventh Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb+4.33+ atom.

36 MATERIALS SCIENCE↗

Materials Data on VH21C7N4Cl7 by Materials Project

VC3H9(NCl)3(CH3)2NH2(CH2Cl2)2 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of sixteen dichloromethane molecules, eight dimethylazanium molecules, and four VC3H9(NCl)3 clusters. In each VC3H9(NCl)3 cluster, V2+ is bonded to three N3- and three Cl1- atoms to form distorted face-sharing VN3Cl3 octahedra. There are a spread of V–N bond distances ranging from 1.90–1.97 Å. There are a spread of V–Cl bond distances ranging from 2.41–2.59 Å. There are three inequivalent C+0.57- sites. In the first C+0.57- site, C+0.57- is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.48 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the second C+0.57- site, C+0.57- is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.47 Å. There is one shorter (1.09 Å) and two longer (1.10 Å) C–H bond length. In the third C+0.57- site, C+0.57- is bonded to one N3- and three H1+ atoms to form corner-sharing CH3N tetrahedra. The C–N bond length is 1.45 Å. There is one shorter (1.08 Å) and two longer (1.10 Å) C–H bond length. There are four inequivalent N3- sites. In the first N3- site, N3- is bonded in a 3-coordinate geometry to two equivalent V2+ and one N3- atom. The N–N bond length is 1.29 Å. In the second N3- site, N3- is bonded in a distorted trigonal planar geometry to two C+0.57- and one N3- atom. In the third N3- site, N3- is bonded in a 3-coordinate geometry to two equivalent V2+ and one N3- atom. The N–N bond length is 1.26 Å. In the fourth N3- site, N3- is bonded in a distorted trigonal planar geometry to two equivalent C+0.57- and one N3- atom. There are nine inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one C+0.57- atom. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one V2+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one V2+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one V2+ atom.

36 MATERIALS SCIENCE↗

Materials Data on P3H2CN2Cl11 by Materials Project

(CH2Cl2)2(P3(NCl4)2)2Cl2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four dichloromethane molecules, four hydrochloric acid molecules, and four P3(NCl4)2 clusters. In each P3(NCl4)2 cluster, there are three inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to one N3- and three Cl1- atoms to form corner-sharing PNCl3 tetrahedra. The P–N bond length is 1.55 Å. There is one shorter (1.99 Å) and two longer (2.00 Å) P–Cl bond length. In the second P5+ site, P5+ is bonded to two N3- and two Cl1- atoms to form corner-sharing PN2Cl2 tetrahedra. There is one shorter (1.57 Å) and one longer (1.58 Å) P–N bond length. There are one shorter (2.00 Å) and one longer (2.01 Å) P–Cl bond lengths. In the third P5+ site, P5+ is bonded to one N3- and three Cl1- atoms to form corner-sharing PNCl3 tetrahedra. The P–N bond length is 1.55 Å. There is one shorter (1.99 Å) and two longer (2.00 Å) P–Cl bond length. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the second N3- site, N3- is bonded in a bent 150 degrees geometry to two P5+ atoms. There are eight inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the fifth Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the sixth Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the seventh Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the eighth Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom.

36 MATERIALS SCIENCE↗

Materials Data on As8H2CS10(N10Cl)2 by Materials Project

(As4(N2S)5)2CH2Cl2 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four dichloromethane molecules and eight As4(N2S)5 clusters. In each As4(N2S)5 cluster, there are four inequivalent As5+ sites. In the first As5+ site, As5+ is bonded in a distorted trigonal non-coplanar geometry to three N+1.20- atoms. All As–N bond lengths are 1.91 Å. In the second As5+ site, As5+ is bonded in a distorted trigonal non-coplanar geometry to three N+1.20- atoms. There is two shorter (1.91 Å) and one longer (1.92 Å) As–N bond length. In the third As5+ site, As5+ is bonded in a distorted trigonal non-coplanar geometry to three N+1.20- atoms. There are a spread of As–N bond distances ranging from 1.90–1.93 Å. In the fourth As5+ site, As5+ is bonded in a distorted trigonal non-coplanar geometry to three N+1.20- atoms. There is two shorter (1.91 Å) and one longer (1.92 Å) As–N bond length. There are ten inequivalent N+1.20- sites. In the first N+1.20- site, N+1.20- is bonded in a bent 120 degrees geometry to one As5+ and one S2- atom. The N–S bond length is 1.54 Å. In the second N+1.20- site, N+1.20- is bonded in a bent 120 degrees geometry to one As5+ and one S2- atom. The N–S bond length is 1.54 Å. In the third N+1.20- site, N+1.20- is bonded in a bent 120 degrees geometry to one As5+ and one S2- atom. The N–S bond length is 1.54 Å. In the fourth N+1.20- site, N+1.20- is bonded in a bent 120 degrees geometry to one As5+ and one S2- atom. The N–S bond length is 1.54 Å. In the fifth N+1.20- site, N+1.20- is bonded in a bent 120 degrees geometry to one As5+ and one S2- atom. The N–S bond length is 1.54 Å. In the sixth N+1.20- site, N+1.20- is bonded in a trigonal planar geometry to two As5+ and one S2- atom. The N–S bond length is 1.70 Å. In the seventh N+1.20- site, N+1.20- is bonded in a bent 120 degrees geometry to one As5+ and one S2- atom. The N–S bond length is 1.55 Å. In the eighth N+1.20- site, N+1.20- is bonded in a trigonal planar geometry to two As5+ and one S2- atom. The N–S bond length is 1.69 Å. In the ninth N+1.20- site, N+1.20- is bonded in a bent 120 degrees geometry to one As5+ and one S2- atom. The N–S bond length is 1.54 Å. In the tenth N+1.20- site, N+1.20- is bonded in a bent 120 degrees geometry to one As5+ and one S2- atom. The N–S bond length is 1.54 Å. There are five inequivalent S2- sites. In the first S2- site, S2- is bonded in a bent 120 degrees geometry to two N+1.20- atoms. In the second S2- site, S2- is bonded in a water-like geometry to two N+1.20- atoms. In the third S2- site, S2- is bonded in a bent 120 degrees geometry to two N+1.20- atoms. In the fourth S2- site, S2- is bonded in a bent 120 degrees geometry to two N+1.20- atoms. In the fifth S2- site, S2- is bonded in a bent 120 degrees geometry to two N+1.20- atoms.

36 MATERIALS SCIENCE↗

Materials Data on V6SbH35C12Cl8O19 by Materials Project

V6C11H33O19CH2Cl2SbCl6 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two dichloromethane molecules, two SbCl6 clusters, and two V6C11H33O19 clusters. In each SbCl6 cluster, Sb is bonded in an octahedral geometry to six Cl atoms. There are a spread of Sb–Cl bond distances ranging from 2.41–2.43 Å. There are six inequivalent Cl sites. In the first Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In the second Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In the third Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In the fourth Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In the fifth Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In the sixth Cl site, Cl is bonded in a single-bond geometry to one Sb atom. In each V6C11H33O19 cluster, there are six inequivalent V sites. In the first V site, V is bonded in a 6-coordinate geometry to six O atoms. There are a spread of V–O bond distances ranging from 1.61–2.38 Å. In the second V site, V is bonded in a 6-coordinate geometry to six O atoms. There are a spread of V–O bond distances ranging from 1.62–2.39 Å. In the third V site, V is bonded in a 6-coordinate geometry to six O atoms. There are a spread of V–O bond distances ranging from 1.62–2.34 Å. In the fourth V site, V is bonded to six O atoms to form distorted VO6 octahedra that share corners with four CH3O tetrahedra. There are a spread of V–O bond distances ranging from 1.61–2.22 Å. In the fifth V site, V is bonded in a 6-coordinate geometry to six O atoms. There are a spread of V–O bond distances ranging from 1.62–2.32 Å. In the sixth V site, V is bonded in a 6-coordinate geometry to six O atoms. There are a spread of V–O bond distances ranging from 1.61–2.25 Å. There are eleven inequivalent C sites. In the first C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the second C site, C is bonded to three H and one O atom to form CH3O tetrahedra that share a cornercorner with one VO6 octahedra. The corner-sharing octahedral tilt angles are 56°. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the third C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the fourth C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.45 Å. In the fifth C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the sixth C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.45 Å. In the seventh C site, C is bonded to three H and one O atom to form CH3O tetrahedra that share a cornercorner with one VO6 octahedra. The corner-sharing octahedral tilt angles are 57°. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the eighth C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the ninth C site, C is bonded to three H and one O atom to form CH3O tetrahedra that share a cornercorner with one VO6 octahedra. The corner-sharing octahedral tilt angles are 52°. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the tenth C site, C is bonded to three H and one O atom to form CH3O tetrahedra that share a cornercorner with one VO6 octahedra. The corner-sharing octahedral tilt angles are 58°. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. In the eleventh C site, C is bonded in a tetrahedral geometry to three H and one O atom. All C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. There are thirty-three inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one C atom. In the second H site, H is bonded in a single-bond geometry to one C atom. In the third H site, H is bonded in a single-bond geometry to one C atom. In the fourth H site, H is bonded in a single-bond geometry to one C atom. In the fifth H site, H is bonded in a single-bond geometry to one C atom. In the sixth H site, H is bonded in a single-bond geometry to one C atom. In the seventh H site, H is bonded in a single-bond geometry to one C atom. In the eighth H site, H is bonded in a single-bond geometry to one C atom. In the ninth H site, H is bonded in a single-bond geometry to one C atom. In the tenth H site, H is bonded in a single-bond geometry to one C atom. In the eleventh H site, H is bonded in a single-bond geometry to one C atom. In the twelfth H site, H is bonded in a single-bond geometry to one C atom. In the thirteenth H site, H is bonded in a single-bond geometry to one C atom. In the fourteenth H site, H is bonded in a single-bond geometry to one C atom. In the fifteenth H site, H is bonded in a single-bond geometry to one C atom. In the sixteenth H site, H is bonded in a single-bond geometry to one C atom. In the seventeenth H site, H is bonded in a single-bond geometry to one C atom. In the eighteenth H site, H is bonded in a single-bond geometry to one C atom. In the nineteenth H site, H is bonded in a single-bond geometry to one C atom. In the twentieth H site, H is bonded in a single-bond geometry to one C atom. In the twenty-first H site, H is bonded in a single-bond geometry to one C atom. In the twenty-second H site, H is bonded in a single-bond geometry to one C atom. In the twenty-third H site, H is bonded in a single-bond geometry to one C atom. In the twenty-fourth H site, H is bonded in a single-bond geometry to one C atom. In the twenty-fifth H site, H is bonded in a single-bond geometry to one C atom. In the twenty-sixth H site, H is bonded in a single-bond geometry to one C atom. In the twenty-seventh H site, H is bonded in a single-bond geometry to one C atom. In the twenty-eighth H site, H is bonded in a single-bond geometry to one C atom. In the twenty-ninth H site, H is bonded in a single-bond geometry to one C atom. In the thirtieth H site, H is bonded in a single-bond geometry to one C atom. In the thirty-first H site, H is bonded in a single-bond geometry to one C atom. In the thirty-second H site, H is bonded in a single-bond geometry to one C atom. In the thirty-third H site, H is bonded in a single-bond geometry to one C atom. There are nineteen inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one V atom. In the second O site, O is bonded in a single-bond geometry to one V atom. In the third O site, O is bonded in a single-bond geometry to one V atom. In the fourth O site, O is bonded in a single-bond geometry to one V atom. In the fifth O site, O is bonded in a bent 120 degrees geometry to two V atoms. In the sixth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the seventh O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the eighth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the ninth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the tenth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the eleventh O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the twelfth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the thirteenth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the fourteenth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the fifteenth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the sixteenth O site, O is bonded in a trigonal planar geometry to two V and one C atom. In the seventeenth O site, O is bonded in an octahedral geometry to six V atoms. In the eighteenth O site, O is bonded in a single-bond geometry to one V atom. In the nineteenth O site, O is bonded in a single-bond geometry to one V atom.

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Materials Data on CCl3 by Materials Project

CCl3 crystallizes in the orthorhombic Fmm2 space group. The structure is zero-dimensional and consists of four chlorine molecules and eight dichloromethane molecules.

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Materials Data on P2H26AuC9Cl3O4 by Materials Project

AuC2H6(P(CH3)3)2CH2Cl2ClO4 crystallizes in the orthorhombic Cmc2_1 space group. The structure is zero-dimensional and consists of four dichloromethane molecules, four dimethylgold molecules, eight trimethylphosphine molecules, and four ClO4 clusters. In each ClO4 cluster, there are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Cl1- atom. The O–Cl bond length is 1.47 Å. In the second O2- site, O2- is bonded in a single-bond geometry to one Cl1- atom. The O–Cl bond length is 1.47 Å. Cl1- is bonded in a tetrahedral geometry to four O2- atoms.

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Materials Data on CCl2 by Materials Project

CCl2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of twelve dichloromethane molecules. C2+ is bonded in a bent 120 degrees geometry to two Cl1- atoms. Both C–Cl bond lengths are 1.74 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one C2+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one C2+ atom.

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Materials Data on Ti2H2CSe4Cl16O5 by Materials Project

Ti2Se4O5Cl14CH2Cl2 is alpha iridium vanadium structured and crystallizes in the monoclinic P2/c space group. The structure is zero-dimensional and consists of two dichloromethane molecules and two Ti2Se4O5Cl14 clusters. In each Ti2Se4O5Cl14 cluster, Ti4+ is bonded to three O2- and three Cl1- atoms to form distorted corner-sharing TiCl3O3 octahedra. The corner-sharing octahedral tilt angles are 18°. There are a spread of Ti–O bond distances ranging from 1.81–2.15 Å. There are a spread of Ti–Cl bond distances ranging from 2.26–2.45 Å. There are two inequivalent Se3+ sites. In the first Se3+ site, Se3+ is bonded in a 1-coordinate geometry to one O2- and two Cl1- atoms. The Se–O bond length is 1.68 Å. There are one shorter (2.20 Å) and one longer (2.21 Å) Se–Cl bond lengths. In the second Se3+ site, Se3+ is bonded in a 1-coordinate geometry to one O2- and two Cl1- atoms. The Se–O bond length is 1.68 Å. Both Se–Cl bond lengths are 2.21 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to two equivalent Ti4+ atoms. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Ti4+ and one Se3+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one Ti4+ and one Se3+ atom. There are seven inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Se3+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Se3+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Se3+ atom. In the fourth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Ti4+ atom. In the fifth Cl1- site, Cl1- is bonded in a single-bond geometry to one Ti4+ atom. In the sixth Cl1- site, Cl1- is bonded in a single-bond geometry to one Ti4+ atom. In the seventh Cl1- site, Cl1- is bonded in a single-bond geometry to one Se3+ atom.

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Materials Data on H2CBrCl by Materials Project

CH2BrCl crystallizes in the orthorhombic P2_12_12 space group. The structure is zero-dimensional and consists of two dibromomethane molecules and two dichloromethane molecules.

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Materials Data on Sb2Te3H2C(NCl9)2 by Materials Project

CH2Cl2Sb2Te3(NCl8)2 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four dichloromethane molecules and four Sb2Te3(NCl8)2 clusters. In each Sb2Te3(NCl8)2 cluster, there are two inequivalent Sb3+ sites. In the first Sb3+ site, Sb3+ is bonded in an octahedral geometry to one N3- and five Cl1- atoms. The Sb–N bond length is 2.10 Å. There are a spread of Sb–Cl bond distances ranging from 2.37–2.47 Å. In the second Sb3+ site, Sb3+ is bonded in an octahedral geometry to six Cl1- atoms. There are a spread of Sb–Cl bond distances ranging from 2.38–2.46 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted trigonal planar geometry to three Te4+ atoms. There are a spread of N–Te bond distances ranging from 2.01–2.07 Å. In the second N3- site, N3- is bonded in a trigonal planar geometry to one Sb3+ and two Te4+ atoms. Both N–Te bond lengths are 2.01 Å. There are three inequivalent Te4+ sites. In the first Te4+ site, Te4+ is bonded in a 4-coordinate geometry to one N3- and three Cl1- atoms. There are a spread of Te–Cl bond distances ranging from 2.34–2.53 Å. In the second Te4+ site, Te4+ is bonded in a 6-coordinate geometry to two N3- and four Cl1- atoms. There are a spread of Te–Cl bond distances ranging from 2.35–3.24 Å. In the third Te4+ site, Te4+ is bonded in a 6-coordinate geometry to two N3- and four Cl1- atoms. There are a spread of Te–Cl bond distances ranging from 2.35–3.16 Å. There are sixteen inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Te4+ atom. In the second Cl1- site, Cl1- is bonded in a 1-coordinate geometry to two Te4+ atoms. In the third Cl1- site, Cl1- is bonded in a distorted L-shaped geometry to two Te4+ atoms. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one Te4+ atom. In the fifth Cl1- site, Cl1- is bonded in a single-bond geometry to one Te4+ atom. In the sixth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb3+ atom. In the seventh Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Sb3+ and one Te4+ atom. In the eighth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb3+ atom. In the ninth Cl1- site, Cl1- is bonded in a 2-coordinate geometry to one Sb3+ and one Te4+ atom. In the tenth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb3+ atom. In the eleventh Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb3+ atom. In the twelfth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb3+ atom. In the thirteenth Cl1- site, Cl1- is bonded in a distorted bent 120 degrees geometry to one Sb3+ and one Te4+ atom. In the fourteenth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb3+ atom. In the fifteenth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Sb3+ and one Te4+ atom. In the sixteenth Cl1- site, Cl1- is bonded in a single-bond geometry to one Sb3+ atom.

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Materials Data on Ti2HCSe4Cl16O5 by Materials Project

Ti2Se4O5Cl14CHCl2 is alpha iridium vanadium structured and crystallizes in the monoclinic Pc space group. The structure is zero-dimensional and consists of two dichloromethane molecules and two Ti2Se4O5Cl14 clusters. In each Ti2Se4O5Cl14 cluster, there are two inequivalent Ti+3.50+ sites. In the first Ti+3.50+ site, Ti+3.50+ is bonded to three O2- and three Cl1- atoms to form distorted corner-sharing TiCl3O3 octahedra. The corner-sharing octahedral tilt angles are 17°. There is one shorter (1.82 Å) and two longer (2.14 Å) Ti–O bond length. There are a spread of Ti–Cl bond distances ranging from 2.26–2.45 Å. In the second Ti+3.50+ site, Ti+3.50+ is bonded to three O2- and three Cl1- atoms to form distorted corner-sharing TiCl3O3 octahedra. The corner-sharing octahedral tilt angles are 17°. There are a spread of Ti–O bond distances ranging from 1.81–2.16 Å. There are a spread of Ti–Cl bond distances ranging from 2.26–2.45 Å. There are four inequivalent Se+3.50+ sites. In the first Se+3.50+ site, Se+3.50+ is bonded in a 1-coordinate geometry to one O2- and two Cl1- atoms. The Se–O bond length is 1.68 Å. Both Se–Cl bond lengths are 2.21 Å. In the second Se+3.50+ site, Se+3.50+ is bonded in a 1-coordinate geometry to one O2- and two Cl1- atoms. The Se–O bond length is 1.68 Å. Both Se–Cl bond lengths are 2.21 Å. In the third Se+3.50+ site, Se+3.50+ is bonded in a 1-coordinate geometry to one O2- and two Cl1- atoms. The Se–O bond length is 1.68 Å. There are one shorter (2.20 Å) and one longer (2.22 Å) Se–Cl bond lengths. In the fourth Se+3.50+ site, Se+3.50+ is bonded in a 1-coordinate geometry to one O2- and two Cl1- atoms. The Se–O bond length is 1.68 Å. There are one shorter (2.20 Å) and one longer (2.22 Å) Se–Cl bond lengths. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one Ti+3.50+ and one Se+3.50+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Ti+3.50+ and one Se+3.50+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one Ti+3.50+ and one Se+3.50+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one Ti+3.50+ and one Se+3.50+ atom. In the fifth O2- site, O2- is bonded in a linear geometry to two Ti+3.50+ atoms. There are fourteen inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Se+3.50+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one Se+3.50+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Ti+3.50+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one Ti+3.50+ atom. In the fifth Cl1- site, Cl1- is bonded in a single-bond geometry to one Ti+3.50+ atom. In the sixth Cl1- site, Cl1- is bonded in a single-bond geometry to one Ti+3.50+ atom. In the seventh Cl1- site, Cl1- is bonded in a single-bond geometry to one Se+3.50+ atom. In the eighth Cl1- site, Cl1- is bonded in a single-bond geometry to one Se+3.50+ atom. In the ninth Cl1- site, Cl1- is bonded in a single-bond geometry to one Se+3.50+ atom. In the tenth Cl1- site, Cl1- is bonded in a single-bond geometry to one Se+3.50+ atom. In the eleventh Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Ti+3.50+ atom. In the twelfth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Ti+3.50+ atom. In the thirteenth Cl1- site, Cl1- is bonded in a single-bond geometry to one Se+3.50+ atom. In the fourteenth Cl1- site, Cl1- is bonded in a single-bond geometry to one Se+3.50+ atom.

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