Materials Data on CdH5Br3N2 by Materials Project
CdBr3NH2NH3 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of four ammonia molecules; four ammonia molecules; and two CdBr3 ribbons oriented in the (1, 0, 0) direction. In each CdBr3 ribbon, Cd2+ is bonded to six Br1- atoms to form distorted edge-sharing CdBr6 octahedra. There are a spread of Cd–Br bond distances ranging from 2.73–3.23 Å. There are three inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a single-bond geometry to one Cd2+ atom. In the second Br1- site, Br1- is bonded in a 3-coordinate geometry to three equivalent Cd2+ atoms. In the third Br1- site, Br1- is bonded in an L-shaped geometry to two equivalent Cd2+ atoms.
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