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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CdH4NCl3 by Materials Project

NH4CdCl3 crystallizes in the orthorhombic Pnma space group. The structure is one-dimensional and consists of four ammonium molecules and two CdCl3 ribbons oriented in the (1, 0, 0) direction. In each CdCl3 ribbon, Cd2+ is bonded to six Cl1- atoms to form edge-sharing CdCl6 octahedra. There are a spread of Cd–Cl bond distances ranging from 2.58–2.76 Å. There are three inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Cd2+ atom. In the second Cl1- site, Cl1- is bonded in a distorted T-shaped geometry to three equivalent Cd2+ atoms. In the third Cl1- site, Cl1- is bonded in a water-like geometry to two equivalent Cd2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CdH6(NCl)2 by Materials Project

CdH6(NCl)2 crystallizes in the monoclinic C2 space group. The structure is one-dimensional and consists of two CdH6(NCl)2 ribbons oriented in the (0, 0, 1) direction. Cd2+ is bonded to two equivalent N3- and four Cl1- atoms to form edge-sharing CdN2Cl4 octahedra. Both Cd–N bond lengths are 2.28 Å. There are two shorter (2.76 Å) and two longer (2.78 Å) Cd–Cl bond lengths. N3- is bonded in a distorted trigonal non-coplanar geometry to one Cd2+ and three H1+ atoms. There is two shorter (1.02 Å) and one 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. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in an L-shaped geometry to two equivalent Cd2+ atoms. In the second Cl1- site, Cl1- is bonded in an L-shaped geometry to two equivalent Cd2+ atoms.

36 MATERIALS SCIENCE↗