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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on SnBr2 by Materials Project

SnBr2 crystallizes in the orthorhombic Pnma space group. The structure is one-dimensional and consists of two SnBr2 ribbons oriented in the (1, 0, 0) direction. Sn2+ is bonded to five Br1- atoms to form edge-sharing SnBr5 square pyramids. There are a spread of Sn–Br bond distances ranging from 2.78–3.19 Å. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in an L-shaped geometry to two equivalent Sn2+ atoms. In the second Br1- site, Br1- is bonded in a 3-coordinate geometry to three equivalent Sn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SnBr2 by Materials Project

SnBr2 is Rutile structured and crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. Sn2+ is bonded to six equivalent Br1- atoms to form a mixture of corner and edge-sharing SnBr6 octahedra. The corner-sharing octahedral tilt angles are 48°. There are two shorter (3.00 Å) and four longer (3.02 Å) Sn–Br bond lengths. Br1- is bonded in a distorted trigonal planar geometry to three equivalent Sn2+ atoms.

36 MATERIALS SCIENCE↗