Materials Data on K2SnHgSe4 by Materials Project

Dataset · Thu Jul 16 00:00:00 EDT 2020

DOI:https://doi.org/10.17188/1274850· OSTI ID:1274850

The Materials Project

K2HgSnSe4 is Hazelwoodite-derived structured and crystallizes in the tetragonal I-42m space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight equivalent Se2- atoms. There are four shorter (3.47 Å) and four longer (3.61 Å) K–Se bond lengths. Hg2+ is bonded to four equivalent Se2- atoms to form distorted HgSe4 tetrahedra that share edges with two equivalent SnSe4 tetrahedra. All Hg–Se bond lengths are 2.77 Å. Sn4+ is bonded to four equivalent Se2- atoms to form SnSe4 tetrahedra that share edges with two equivalent HgSe4 tetrahedra. All Sn–Se bond lengths are 2.59 Å. Se2- is bonded in a 6-coordinate geometry to four equivalent K1+, one Hg2+, and one Sn4+ atom.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Contributing Organization: MIT; UC Berkeley; Duke; U Louvain
• DOE Contract Number: AC02-05CH11231; EDCBEE
• OSTI ID: 1274850
• Report Number(s): mp-568968
• Resource Relation: Related Information: https://materialsproject.org/citing
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
crystal structure
K2SnHgSe4
Hg-K-Se-Sn