Materials Data on K(SnSe2)2 by Materials Project

Kristin Persson
K(SnSe2)2 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of K–Se bond distances ranging from 3.36–3.97 Å. There are three inequivalent Sn+3.50+ sites. In the first Sn+3.50+ site, Sn+3.50+ is bonded to four Se2- atoms to form corner-sharing SnSe4 tetrahedra. There are a spread of Sn–Se bond distances ranging from 2.53–2.60 Å. In the second Sn+3.50+ site,...
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