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DOE OSTI2020

Materials Data on Li3AsH36(SeN3)4 by Materials Project

(Li(NH3)4)3AsSe4 is Silicon tetrafluoride-derived structured and crystallizes in the cubic I-43m space group. The structure is zero-dimensional and consists of two AsSe4 clusters and six Li(NH3)4 clusters. In each AsSe4 cluster, As5+ is bonded in a tetrahedral geometry to four equivalent Se2- atoms. All As–Se bond lengths are 2.35 Å. Se2- is bonded in a single-bond geometry to one As5+ atom. In each Li(NH3)4 cluster, Li1+ is bonded in a tetrahedral geometry to four equivalent N3- atoms. All Li–N bond lengths are 2.17 Å. N3- is bonded in a distorted trigonal non-coplanar geometry to one Li1+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CoH20PtC4(NO3)4 by Materials Project

Pt(NH3)4CoH4(C2O5)2(H2O)2 crystallizes in the orthorhombic I222 space group. The structure is zero-dimensional and consists of four water molecules, two CoH4(C2O5)2 clusters, and two Pt(NH3)4 clusters. In each CoH4(C2O5)2 cluster, Co2+ is bonded in an octahedral geometry to six O2- atoms. There are two shorter (2.06 Å) and four longer (2.12 Å) Co–O bond lengths. C4+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.28 Å) C–O bond length. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one C4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Co2+ and two equivalent H1+ atoms. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Co2+ and one C4+ atom. In each Pt(NH3)4 cluster, Pt2- is bonded in a square co-planar geometry to four equivalent N3- atoms. All Pt–N bond lengths are 2.07 Å. N3- is bonded in a distorted trigonal non-coplanar geometry to one Pt2- and three H1+ atoms. All N–H bond lengths are 1.03 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MnTe4(H3N)6 by Materials Project

Mn(NH3)6(Te)4 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of four Mn(NH3)6 clusters and two Te ribbons oriented in the (1, 0, 0) direction. In each Mn(NH3)6 cluster, Mn2+ is bonded in an octahedral geometry to six N3- atoms. There are a spread of Mn–N bond distances ranging from 2.24–2.30 Å. There are six inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Mn2+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. In the second N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Mn2+ and three H1+ atoms. There is one shorter (1.02 Å) and two longer (1.03 Å) N–H bond length. In the third N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Mn2+ and three H1+ atoms. There is one shorter (1.02 Å) and two longer (1.03 Å) N–H bond length. In the fourth N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Mn2+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. In the fifth N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Mn2+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. In the sixth N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Mn2+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. There are eighteen inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the twelfth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the thirteenth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fourteenth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fifteenth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the sixteenth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the seventeenth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the eighteenth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In each Te ribbon, there are four inequivalent Te+0.50- sites. In the first Te+0.50- site, Te+0.50- is bonded in a distorted water-like geometry to three Te+0.50- atoms. There are a spread of Te–Te bond distances ranging from 2.79–3.90 Å. In the second Te+0.50- site, Te+0.50- is bonded in a distorted linear geometry to two Te+0.50- atoms. There are one shorter (2.92 Å) and one longer (3.27 Å) Te–Te bond lengths. In the third Te+0.50- site, Te+0.50- is bonded in a distorted water-like geometry to two Te+0.50- atoms. In the fourth Te+0.50- site, Te+0.50- is bonded in a distorted water-like geometry to two Te+0.50- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CuH20N6OF2 by Materials Project

Cu(NH3)6F2(H2O) is Cinnabar structured and crystallizes in the trigonal P3_221 space group. The structure is zero-dimensional and consists of three hydrate;dihydrofluoride molecules and three Cu(NH3)6 clusters. In each Cu(NH3)6 cluster, Cu2+ is bonded in an octahedral geometry to six N3- atoms. There are a spread of Cu–N bond distances ranging from 2.06–2.45 Å. There are three inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Cu2+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. In the second N3- site, N3- is bonded in a trigonal non-coplanar geometry to one Cu2+ and three H1+ atoms. There is two shorter (1.02 Å) and one longer (1.03 Å) N–H bond length. In the third N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Cu2+ and three H1+ atoms. There are a spread of N–H bond distances ranging from 1.02–1.04 Å. There are nine inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiH13(CN2)2 by Materials Project

Li(NH3)4C2H is Silicon tetrafluoride-derived structured and crystallizes in the tetragonal P4/n space group. The structure is zero-dimensional and consists of two ethyne molecules and two Li(NH3)4 clusters. In each Li(NH3)4 cluster, Li1+ is bonded in a tetrahedral geometry to four equivalent N3- atoms. All Li–N bond lengths are 2.07 Å. N3- is bonded to one Li1+ and three H1+ atoms to form distorted corner-sharing NLiH3 tetrahedra. There is one shorter (1.02 Å) and two longer (1.03 Å) N–H bond length. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NiH20PtC4(NO3)4 by Materials Project

Pt(NH3)4NiH4(C2O5)2(H2O)2 crystallizes in the orthorhombic I222 space group. The structure is zero-dimensional and consists of four water molecules, two NiH4(C2O5)2 clusters, and two Pt(NH3)4 clusters. In each NiH4(C2O5)2 cluster, Ni2+ is bonded in an octahedral geometry to six O2- atoms. There are four shorter (2.07 Å) and two longer (2.08 Å) Ni–O bond lengths. C4+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.26 Å) and one longer (1.28 Å) C–O bond length. H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one C4+ atom. In the second O2- site, O2- is bonded in a distorted water-like geometry to one Ni2+ and two equivalent H1+ atoms. In the third O2- site, O2- is bonded in a distorted water-like geometry to one Ni2+ and one C4+ atom. In each Pt(NH3)4 cluster, Pt2- is bonded in a square co-planar geometry to four equivalent N3- atoms. All Pt–N bond lengths are 2.06 Å. N3- is bonded in a distorted trigonal non-coplanar geometry to one Pt2- and three H1+ atoms. All N–H bond lengths are 1.03 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zn2Te15(H3N)8 by Materials Project

(Zn(NH3)4)2(Te)15 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional and consists of four Zn(NH3)4 clusters and one Te framework. In each Zn(NH3)4 cluster, Zn2+ is bonded in a tetrahedral geometry to four N3- atoms. There are one shorter (2.03 Å) and three longer (2.04 Å) Zn–N bond lengths. There are four inequivalent N3- sites. In the first N3- site, N3- is bonded to one Zn2+ and three H1+ atoms to form distorted corner-sharing NZnH3 tetrahedra. All N–H bond lengths are 1.03 Å. In the second N3- site, N3- is bonded to one Zn2+ and three H1+ atoms to form distorted corner-sharing NZnH3 tetrahedra. All N–H bond lengths are 1.03 Å. In the third N3- site, N3- is bonded to one Zn2+ and three H1+ atoms to form distorted corner-sharing NZnH3 tetrahedra. All N–H bond lengths are 1.03 Å. In the fourth N3- site, N3- is bonded to one Zn2+ and three H1+ atoms to form distorted corner-sharing NZnH3 tetrahedra. All N–H bond lengths are 1.03 Å. There are twelve inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the twelfth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the Te framework, there are eight inequivalent Te+0.27- sites. In the first Te+0.27- site, Te+0.27- is bonded in a 4-coordinate geometry to four Te+0.27- atoms. There are two shorter (3.10 Å) and two longer (3.33 Å) Te–Te bond lengths. In the second Te+0.27- site, Te+0.27- is bonded in a distorted single-bond geometry to one Te+0.27- atom. The Te–Te bond length is 2.82 Å. In the third Te+0.27- site, Te+0.27- is bonded in a 4-coordinate geometry to four Te+0.27- atoms. There are a spread of Te–Te bond distances ranging from 2.85–3.69 Å. In the fourth Te+0.27- site, Te+0.27- is bonded in a distorted water-like geometry to two Te+0.27- atoms. The Te–Te bond length is 2.80 Å. In the fifth Te+0.27- site, Te+0.27- is bonded in a 2-coordinate geometry to three Te+0.27- atoms. The Te–Te bond length is 2.89 Å. In the sixth Te+0.27- site, Te+0.27- is bonded in a 2-coordinate geometry to two Te+0.27- atoms. The Te–Te bond length is 2.89 Å. In the seventh Te+0.27- site, Te+0.27- is bonded in a distorted bent 120 degrees geometry to two Te+0.27- atoms. The Te–Te bond length is 2.82 Å. In the eighth Te+0.27- site, Te+0.27- is bonded in a 2-coordinate geometry to three Te+0.27- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CuH16PtC4N4O11 by Materials Project

Pt(NH3)4CuC4O9(H2O)2 crystallizes in the monoclinic C2 space group. The structure is zero-dimensional and consists of four water molecules, two CuC4O9 clusters, and two Pt(NH3)4 clusters. In each CuC4O9 cluster, Cu2+ is bonded in a square pyramidal geometry to five O2- atoms. There is one shorter (1.87 Å) and four longer (1.99 Å) Cu–O bond length. There are two inequivalent C+3.50+ sites. In the first C+3.50+ site, C+3.50+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.24 Å) and one longer (1.30 Å) C–O bond length. In the second C+3.50+ site, C+3.50+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.24 Å) and one longer (1.29 Å) C–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted water-like geometry to one Cu2+ and one C+3.50+ atom. In the second O2- site, O2- is bonded in a distorted water-like geometry to one Cu2+ and one C+3.50+ atom. In the third O2- site, O2- is bonded in a single-bond geometry to one C+3.50+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C+3.50+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one Cu2+ atom. In each Pt(NH3)4 cluster, Pt2+ is bonded in a square co-planar geometry to four N3- atoms. All Pt–N bond lengths are 2.06 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Pt2+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. In the second N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Pt2+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. There are six inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YB3(H5N)6 by Materials Project

Y(NH3)6(BH4)3 crystallizes in the cubic P2_13 space group. The structure is zero-dimensional and consists of twelve BH4 clusters and four Y(NH3)6 clusters. In each BH4 cluster, B3- is bonded in a tetrahedral geometry to four H+0.80+ atoms. All B–H bond lengths are 1.23 Å. There are two inequivalent H+0.80+ sites. In the first H+0.80+ site, H+0.80+ is bonded in a single-bond geometry to one B3- atom. In the second H+0.80+ site, H+0.80+ is bonded in a single-bond geometry to one B3- atom. In each Y(NH3)6 cluster, Y3+ is bonded in an octahedral geometry to six N3- atoms. All Y–N bond lengths are 2.44 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Y3+ and three H+0.80+ atoms. There is two shorter (1.03 Å) and one longer (1.04 Å) N–H bond length. In the second N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Y3+ and three H+0.80+ atoms. All N–H bond lengths are 1.03 Å. There are six inequivalent H+0.80+ sites. In the first H+0.80+ site, H+0.80+ is bonded in a single-bond geometry to one N3- atom. In the second H+0.80+ site, H+0.80+ is bonded in a single-bond geometry to one N3- atom. In the third H+0.80+ site, H+0.80+ is bonded in a single-bond geometry to one N3- atom. In the fourth H+0.80+ site, H+0.80+ is bonded in a single-bond geometry to one N3- atom. In the fifth H+0.80+ site, H+0.80+ is bonded in a single-bond geometry to one N3- atom. In the sixth H+0.80+ site, H+0.80+ is bonded in a single-bond geometry to one N3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiB6H21N5 by Materials Project

Li(NH3)4(BH)6NH3 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four ammonia molecules, twenty-four boranediylradical molecules, and four Li(NH3)4 clusters. In each Li(NH3)4 cluster, Li1+ is bonded in a tetrahedral geometry to four N+2.80- atoms. There are a spread of Li–N bond distances ranging from 2.12–2.16 Å. There are four inequivalent N+2.80- sites. In the first N+2.80- site, N+2.80- is bonded to one Li1+ and three H+0.90+ atoms to form distorted corner-sharing NLiH3 tetrahedra. There is two shorter (1.02 Å) and one longer (1.03 Å) N–H bond length. In the second N+2.80- site, N+2.80- is bonded to one Li1+ and three H+0.90+ atoms to form distorted corner-sharing NLiH3 tetrahedra. There is two shorter (1.02 Å) and one longer (1.03 Å) N–H bond length. In the third N+2.80- site, N+2.80- is bonded to one Li1+ and three H+0.90+ atoms to form distorted corner-sharing NLiH3 tetrahedra. There is two shorter (1.02 Å) and one longer (1.03 Å) N–H bond length. In the fourth N+2.80- site, N+2.80- is bonded to one Li1+ and three H+0.90+ atoms to form distorted corner-sharing NLiH3 tetrahedra. There is two shorter (1.02 Å) and one longer (1.03 Å) N–H bond length. There are twelve inequivalent H+0.90+ sites. In the first H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom. In the second H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom. In the third H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom. In the fourth H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom. In the fifth H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom. In the sixth H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom. In the seventh H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom. In the eighth H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom. In the ninth H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom. In the tenth H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom. In the eleventh H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom. In the twelfth H+0.90+ site, H+0.90+ is bonded in a single-bond geometry to one N+2.80- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2AlB5(H19N3)2 by Materials Project

Li2(BH4)3(BH4)2Al(NH3)6 crystallizes in the trigonal P-3c1 space group. The structure is two-dimensional and consists of two Al(NH3)6 clusters; four BH4 clusters; and two Li2(BH4)3 sheets oriented in the (0, 0, 1) direction. In each Al(NH3)6 cluster, Al3+ is bonded in an octahedral geometry to six equivalent N3- atoms. All Al–N bond lengths are 2.04 Å. N3- is bonded in a distorted trigonal non-coplanar geometry to one Al3+ and three H+0.74+ atoms. All N–H bond lengths are 1.03 Å. There are three inequivalent H+0.74+ sites. In the first H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one N3- atom. In the second H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one N3- atom. In the third H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one N3- atom. In each BH4 cluster, B3- is bonded in a tetrahedral geometry to four H+0.74+ atoms. All B–H bond lengths are 1.23 Å. There are two inequivalent H+0.74+ sites. In the first H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one B3- atom. In the second H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one B3- atom. In each Li2(BH4)3 sheet, Li1+ is bonded in a 6-coordinate geometry to six H+0.74+ atoms. There are three shorter (2.03 Å) and three longer (2.28 Å) Li–H bond lengths. B3- is bonded in a tetrahedral geometry to four H+0.74+ atoms. All B–H bond lengths are 1.23 Å. There are two inequivalent H+0.74+ sites. In the first H+0.74+ site, H+0.74+ is bonded in a single-bond geometry to one Li1+ and one B3- atom. In the second H+0.74+ site, H+0.74+ is bonded in a water-like geometry to one Li1+ and one B3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZnTeH12Se3N4 by Materials Project

Zn(NH3)4TeSe3 crystallizes in the orthorhombic Pca2_1 space group. The structure is zero-dimensional and consists of four TeSe3 clusters and four Zn(NH3)4 clusters. In each TeSe3 cluster, Te4+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. All Te–Se bond lengths are 2.53 Å. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a single-bond geometry to one Te4+ atom. In the second Se2- site, Se2- is bonded in a single-bond geometry to one Te4+ atom. In the third Se2- site, Se2- is bonded in a single-bond geometry to one Te4+ atom. In each Zn(NH3)4 cluster, Zn2+ is bonded in a tetrahedral geometry to four N3- atoms. There are a spread of Zn–N bond distances ranging from 2.01–2.04 Å. There are four inequivalent N3- sites. In the first N3- site, N3- is bonded to one Zn2+ and three H1+ atoms to form distorted corner-sharing NZnH3 tetrahedra. All N–H bond lengths are 1.03 Å. In the second N3- site, N3- is bonded to one Zn2+ and three H1+ atoms to form distorted corner-sharing NZnH3 tetrahedra. There are a spread of N–H bond distances ranging from 1.02–1.04 Å. In the third N3- site, N3- is bonded to one Zn2+ and three H1+ atoms to form distorted corner-sharing NZnH3 tetrahedra. All N–H bond lengths are 1.03 Å. In the fourth N3- site, N3- is bonded to one Zn2+ and three H1+ atoms to form distorted corner-sharing NZnH3 tetrahedra. There is one shorter (1.03 Å) and two longer (1.04 Å) N–H bond length. There are twelve inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the tenth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the eleventh H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the twelfth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2MgB4(H17N3)2 by Materials Project

(Li(BH4)2)2Mg(NH3)6 crystallizes in the tetragonal P4_32_12 space group. The structure is one-dimensional and consists of four Mg(NH3)6 clusters and two Li(BH4)2 ribbons oriented in the (0, 0, 1) direction. In each Mg(NH3)6 cluster, Mg2+ is bonded in an octahedral geometry to six N3- atoms. There are a spread of Mg–N bond distances ranging from 2.22–2.28 Å. There are three inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Mg2+ and three H+0.76+ atoms. There is one shorter (1.02 Å) and two longer (1.03 Å) N–H bond length. In the second N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Mg2+ and three H+0.76+ atoms. There is one shorter (1.02 Å) and two longer (1.03 Å) N–H bond length. In the third N3- site, N3- is bonded in a distorted trigonal non-coplanar geometry to one Mg2+ and three H+0.76+ atoms. There is two shorter (1.02 Å) and one longer (1.03 Å) N–H bond length. There are nine inequivalent H+0.76+ sites. In the first H+0.76+ site, H+0.76+ is bonded in a single-bond geometry to one N3- atom. In the second H+0.76+ site, H+0.76+ is bonded in a single-bond geometry to one N3- atom. In the third H+0.76+ site, H+0.76+ is bonded in a single-bond geometry to one N3- atom. In the fourth H+0.76+ site, H+0.76+ is bonded in a single-bond geometry to one N3- atom. In the fifth H+0.76+ site, H+0.76+ is bonded in a single-bond geometry to one N3- atom. In the sixth H+0.76+ site, H+0.76+ is bonded in a single-bond geometry to one N3- atom. In the seventh H+0.76+ site, H+0.76+ is bonded in a single-bond geometry to one N3- atom. In the eighth H+0.76+ site, H+0.76+ is bonded in a single-bond geometry to one N3- atom. In the ninth H+0.76+ site, H+0.76+ is bonded in a single-bond geometry to one N3- atom. In each Li(BH4)2 ribbon, Li1+ is bonded in a 8-coordinate geometry to eight H+0.76+ atoms. There are a spread of Li–H bond distances ranging from 1.94–2.28 Å. There are two inequivalent B3- sites. In the first B3- site, B3- is bonded in a tetrahedral geometry to four H+0.76+ atoms. All B–H bond lengths are 1.23 Å. In the second B3- site, B3- is bonded in a tetrahedral geometry to four H+0.76+ atoms. All B–H bond lengths are 1.23 Å. There are eight inequivalent H+0.76+ sites. In the first H+0.76+ site, H+0.76+ is bonded in a water-like geometry to one Li1+ and one B3- atom. In the second H+0.76+ site, H+0.76+ is bonded in a water-like geometry to one Li1+ and one B3- atom. In the third H+0.76+ site, H+0.76+ is bonded in a distorted single-bond geometry to two equivalent Li1+ and one B3- atom. In the fourth H+0.76+ site, H+0.76+ is bonded in a water-like geometry to one Li1+ and one B3- atom. In the fifth H+0.76+ site, H+0.76+ is bonded in a single-bond geometry to one B3- atom. In the sixth H+0.76+ site, H+0.76+ is bonded in a water-like geometry to one Li1+ and one B3- atom. In the seventh H+0.76+ site, H+0.76+ is bonded in a distorted single-bond geometry to two equivalent Li1+ and one B3- atom. In the eighth H+0.76+ site, H+0.76+ is bonded in a single-bond geometry to one B3- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2023

Autoignition Delay Times of Hydrogen/Ammonia/Air Mixtures at Gas Turbine Relevant Conditions

This study reports the autoignition delay times of hydrogen/ammonia mixtures at conditions similar to turbine engine operating conditions (23 bar, 1100-1250 K). H2 was mixed with NH3 and shock-heated using synthetic air as the oxidizer. The data is compared against the current state-of-the-art NH3 chemical kinetic mechanisms found in the literature for undiluted fuel validation and refinement. Experiments were performed in a high-pressure shock tube and have shown detonation pressures reaching 200 bar. Lower temperature points have also exhibited non-ideal behavior, which calls for extensive chemical analysis to accurately report the IDTs. This work will aid in the design of air-breathing turbine engines using hydrogen and ammonia as fuel and develop a well-built NH3-based chemical kinetic mechanism.

Pierro, Michael↗
DOE OSTI2024

1D Simulation of Avalanche to Streamer to Spark Transition of Plasma Discharge in Ammonia-Air Combustion

The backward problem of plasma assisted combustion emphasizes evaluating the effect of the evolving thermochemical state on the plasma discharge. This paper investigates the dependence of avalanche to streamer to spark formation dynamics and kinetics on the gas composition and temperature at different points in an ammonia-air premixed laminar flame using a self-consistent multigrid-based 1D plasma solver. Different values of ..alpha.., the coefficient for effective ionization events per unit length, have been reported for electron avalanches in air and stoichiometric NH3-air mixtures. The streamer inception has been shown to obey the Meek's criterion. An exponential reduction in streamer and spark formation time has been observed from plasma simulations at different points in the unburnt, pre-heat zone, reaction zone and the fully burnt regions of the premixed flame. While the enhancement of the reduced electric field with increasing temperature affects effective ionization, there exists a minimum breakdown field for streamer formation, which does not vary proportionally with the changing number density of the gas. The change in the mixture from reactants (NH3, O2, N2) to products of complete combustion of ammonia in air (N2, H2O) has also been shown to affect the streamer and spark formation. Finally, the major pathways during the streamer and spark phases which are responsible for producing important radicals used in combustion of NH3 are also discussed.

ADVANCED PROPULSION SYSTEMS,INORGANIC, ORGANIC, PH↗
DOE OSTI2020

Mitigation of Gaseous Emissions from Swine Manure with the Surficial Application of Biochars

Environmental impact associated with odor and gaseous emissions from animal manure is one of the challenges for communities, farmers, and regulatory agencies. Microbe-based manure additives treatments are marketed and used by farmers for mitigation of emissions. However, their performance is difficult to assess objectively. Thus, comprehensive, practical, and low-cost treatments are still in demand. We have been advancing such treatments based on physicochemical principles. The objective of this research was to test the effect of the surficial application of a thin layer (¼ inches; 6.3 mm) of biochar on the mitigation of gaseous emissions (as the percent reduction, % R) from swine manure. Two types of biochar were tested: highly alkaline and porous (HAP) biochar made from corn stover and red oak (RO), both with different pH and morphology. Three 30-day trials were conducted with a layer of HAP and RO (2.0 & 1.65 kg∙m−2, respectively) applied on manure surface, and emissions of ammonia (NH3), hydrogen sulfide (H2S), greenhouse gases (GHG), and odorous volatile organic compounds (VOCs) were measured. The manure and biochar type and properties had an impact on the mitigation effect and its duration. RO significantly reduced NH3 (19–39%) and p-cresol (66–78%). H2S was mitigated (16~23%), but not significantly for all trials. The phenolic VOCs had relatively high % R in most trials but not significantly for all trials. HAP reduced NH3 (4~21%) and H2S (2~22%), but not significantly for all trials. Significant % R for p-cresol (91~97%) and skatole (74~95%) were observed for all trials. The % R for phenol and indole ranged from (60~99%) and (29~94%) but was not significant for all trials. The impact on GHGs, isobutyric acid, and the odor was mixed with some mitigation and generation effects. However, larger-scale experiments are needed to understand how biochar properties and the dose and frequency of application can be optimized to mitigate odor and gaseous emissions from swine manure. The lessons learned can also be applicable to surficial biochar treatment of gaseous emissions from other waste and area sources.

Meiirkhanuly, Zhanibek↗
DOE OSTI2021

Effect of Humidity on the Reactive Uptake of Ammonia and Dimethylamine by Nitrogen-Containing Secondary Organic Aerosol

This study investigated the uptake of ammonia (NH3) by secondary organic aerosol (SOA) particles generated via limonene photooxidation or ozonolysis as well as the uptake of dimethylamine (DMA) by limonene ozonolysis, α-cedrene photooxidation, or toluene photooxidation SOA in an environmental chamber between 0–50% relative humidity. In addition to the acid-base equilibrium uptake, NH3 and DMA can react with SOA carbonyl compounds converting them into nitrogen-containing organic compounds (NOCs). The effective reactive uptake coefficients for the formation of NOCs from ammonia were measured on the order of 10−5. The observed DMA reactive uptake coefficients ranged from 10−5 to 10−4. Typically, the reactive uptake coefficient decreased with increasing relative humidity. This is consistent with NOC formation by a condensation reaction between NH3 or DMA with SOA, which produces water as a product. Ammonia is more abundant in the atmosphere than amines. However, the larger observed reactive uptake coefficient suggests that amine uptake may also be a potential source of organic nitrogen in particulate matter.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2020

A global anthropogenic emission inventory of atmospheric pollutants from sector- and fuel-specific sources (1970–2017): an application of the Community Emissions Data System (CEDS)

Global anthropogenic emission inventories remain vital for understanding the sources of atmospheric pollution and the associated impacts on the environment, human health, and society. Rapid changes in today's society require that these inventories provide contemporary estimates of multiple atmospheric pollutants with both source sector and fuel type information to understand and effectively mitigate future impacts. To fill this need, we have updated the open-source Community Emissions Data System (CEDS) (Hoesly et al., 2019) to develop a new global emission inventory, CEDSGBD-MAPS. This inventory includes emissions of seven key atmospheric pollutants (NOx; CO; SO2; NH3; non-methane volatile organic compounds, NMVOCs; black carbon, BC; organic carbon, OC) over the time period from 1970–2017 and reports annual country-total emissions as a function of 11 anthropogenic sectors (agriculture; energy generation; industrial processes; on-road and non-road transportation; separate residential, commercial, and other sectors (RCO); waste; solvent use; and international shipping) and four fuel categories (total coal, solid biofuel, the sum of liquid-fuel and natural-gas combustion, and remaining process-level emissions). The CEDSGBD-MAPS inventory additionally includes monthly global gridded (0.5°?×?0.5°) emission fluxes for each compound, sector, and fuel type to facilitate their use in earth system models. CEDSGBD-MAPS utilizes updated activity data, updates to the core CEDS default scaling procedure, and modifications to the final procedures for emissions gridding and aggregation. Relative to the previous CEDS inventory (Hoesly et al., 2018), these updates extend the emission estimates from 2014 to 2017 and improve the overall agreement between CEDS and two widely used global bottom-up emission inventories. The CEDSGBD-MAPS inventory provides the most contemporary global emission estimates to date for these key atmospheric pollutants and is the first to provide global estimates for these species as a function of multiple fuel types and source sectors. Dominant sources of global NOx and SO2 emissions in 2017 include the combustion of oil, gas, and coal in the energy and industry sectors as well as on-road transportation and international shipping for NOx. Dominant sources of global CO emissions in 2017 include on-road transportation and residential biofuel combustion. Dominant global sources of carbonaceous aerosol in 2017 include residential biofuel combustion, on-road transportation (BC only), and emissions from the waste sector. Global emissions of NOx, SO2, CO, BC, and OC all peak in 2012 or earlier, with more recent emission reductions driven by large changes in emissions from China, North America, and Europe. In contrast, global emissions of NH3 and NMVOCs continuously increase between 1970 and 2017, with agriculture as a major source of global NH3 emissions and solvent use, energy, residential, and the on-road transport sectors as major sources of global NMVOCs. Due to similar development methods and underlying datasets, the CEDSGBD-MAPS emissions are expected to have consistent sources of uncertainty as other bottom-up inventories. The CEDSGBD-MAPS source code is publicly available online through GitHub: https://github.com/emcduffie/CEDS/tree/CEDS_GBD-MAPS (last access: 1 December 2020). The CEDSGBD-MAPS emission inventory dataset (both annual country-total and monthly global gridded files) is publicly available under https://doi.org/10.5281/zenodo.3754964 (McDuffie et al., 2020c).

Mcduffie, Erin↗