Materials Data on K2MoSe2O11 by Materials Project
K2MoSe2O11 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent K sites. In the first K site, K is bonded in a 7-coordinate geometry to eight O atoms. There are a spread of K–O bond distances ranging from 2.81–3.39 Å. In the second K site, K is bonded in a 7-coordinate geometry to eight O atoms. There are a spread of K–O bond distances ranging from 2.67–3.32 Å. Mo is bonded in a distorted octahedral geometry to six O atoms. There are a spread of Mo–O bond distances ranging from 1.75–2.23 Å. There are two inequivalent Se sites. In the first Se site, Se is bonded in a trigonal non-coplanar geometry to three O atoms. There are a spread of Se–O bond distances ranging from 1.69–1.80 Å. In the second Se site, Se is bonded in a trigonal non-coplanar geometry to three O atoms. There are a spread of Se–O bond distances ranging from 1.67–1.83 Å. There are eleven inequivalent O sites. In the first O site, O is bonded in a distorted bent 150 degrees geometry to one K and one Mo atom. In the second O site, O is bonded in a 3-coordinate geometry to one K, one Mo, and one Se atom. In the third O site, O is bonded in a distorted single-bond geometry to two K and one Mo atom. In the fourth O site, O is bonded in a distorted single-bond geometry to two equivalent K and one Se atom. In the fifth O site, O is bonded in a distorted water-like geometry to three K atoms. In the sixth O site, O is bonded in a distorted water-like geometry to one K and one Se atom. In the seventh O site, O is bonded in a distorted trigonal planar geometry to one K, one Mo, and one Se atom. In the eighth O site, O is bonded in a bent 120 degrees geometry to one K and one O atom. The O–O bond length is 1.24 Å. In the ninth O site, O is bonded in a 4-coordinate geometry to two equivalent K, one Mo, and one Se atom. In the tenth O site, O is bonded in a water-like geometry to one K and one O atom. In the eleventh O site, O is bonded in a distorted trigonal non-coplanar geometry to one K, one Mo, and one Se atom.