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Materials Data on Mg(InSe2)2 by Materials Project

Dataset ·
DOI:https://doi.org/10.17188/1692537· OSTI ID:1692537
Mg(InSe2)2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Mg2+ is bonded in a 7-coordinate geometry to seven Se2- atoms. There are a spread of Mg–Se bond distances ranging from 2.74–3.25 Å. There are two inequivalent In3+ sites. In the first In3+ site, In3+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing InSe6 octahedra. The corner-sharing octahedra tilt angles range from 49–62°. There are a spread of In–Se bond distances ranging from 2.71–2.92 Å. In the second In3+ site, In3+ is bonded to six Se2- atoms to form a mixture of edge and corner-sharing InSe6 octahedra. The corner-sharing octahedra tilt angles range from 49–62°. There are a spread of In–Se bond distances ranging from 2.76–2.86 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to three equivalent Mg2+ and two equivalent In3+ atoms to form a mixture of edge and corner-sharing SeMg3In2 square pyramids. In the second Se2- site, Se2- is bonded in a rectangular see-saw-like geometry to four In3+ atoms. In the third Se2- site, Se2- is bonded in a 5-coordinate geometry to two equivalent Mg2+ and three In3+ atoms. In the fourth Se2- site, Se2- is bonded to two equivalent Mg2+ and three In3+ atoms to form SeMg2In3 square pyramids that share corners with two equivalent SeMg3In2 square pyramids and edges with five SeMg2In3 square pyramids.
Research Organization:
LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Contributing Organization:
The Materials Project; MIT; UC Berkeley; Duke; U Louvain
DOE Contract Number:
AC02-05CH11231
OSTI ID:
1692537
Report Number(s):
mp-1232047
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
In-Mg-Se
Mg(InSe2)2
crystal structure