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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CaBr2 by Materials Project

CaBr2 is Hydrophilite structured and crystallizes in the orthorhombic Pnnm space group. The structure is three-dimensional. Ca2+ is bonded to six equivalent Br1- atoms to form a mixture of edge and corner-sharing CaBr6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are four shorter (2.92 Å) and two longer (2.94 Å) Ca–Br bond lengths. Br1- is bonded in a distorted trigonal planar geometry to three equivalent Ca2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CaBr2 by Materials Project

CaBr2 is Rutile structured and crystallizes in the orthorhombic Pnnm space group. The structure is three-dimensional. Ca2+ is bonded to six equivalent Br1- atoms to form a mixture of edge and corner-sharing CaBr6 octahedra. The corner-sharing octahedral tilt angles are 49°. There are four shorter (2.92 Å) and two longer (2.94 Å) Ca–Br bond lengths. Br1- is bonded in a distorted trigonal planar geometry to three equivalent Ca2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca3SiBr2 by Materials Project

Ca2SiCaBr2 crystallizes in the trigonal P-3m1 space group. The structure is two-dimensional and consists of one Ca2Si sheet oriented in the (0, 0, 1) direction and one CaBr2 sheet oriented in the (0, 0, 1) direction. In the Ca2Si sheet, Ca2+ is bonded in a trigonal non-coplanar geometry to three equivalent Si4- atoms. All Ca–Si bond lengths are 2.92 Å. Si4- is bonded to six equivalent Ca2+ atoms to form distorted edge-sharing SiCa6 octahedra. In the CaBr2 sheet, Ca2+ is bonded to six equivalent Br1- atoms to form edge-sharing CaBr6 octahedra. All Ca–Br bond lengths are 3.00 Å. Br1- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ca2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca3SiBr2 by Materials Project

Ca2SiCaBr2 crystallizes in the trigonal R-3m space group. The structure is two-dimensional and consists of three Ca2Si sheets oriented in the (0, 0, 1) direction and three CaBr2 sheets oriented in the (0, 0, 1) direction. In each Ca2Si sheet, Ca2+ is bonded in a trigonal non-coplanar geometry to three equivalent Si4- atoms. All Ca–Si bond lengths are 2.90 Å. Si4- is bonded to six equivalent Ca2+ atoms to form distorted edge-sharing SiCa6 octahedra. In each CaBr2 sheet, Ca2+ is bonded to six equivalent Br1- atoms to form edge-sharing CaBr6 octahedra. All Ca–Br bond lengths are 3.00 Å. Br1- is bonded in a distorted T-shaped geometry to three equivalent Ca2+ atoms.

36 MATERIALS SCIENCE↗