Materials Data on K2Mo4O13 by Materials Project
K2Mo4O13 crystallizes in the orthorhombic Pbca space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of K–O bond distances ranging from 2.69–3.23 Å. In the second K1+ site, K1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of K–O bond distances ranging from 2.81–3.06 Å. There are four inequivalent Mo6+ sites. In the first Mo6+ site, Mo6+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mo–O bond distances ranging from 1.77–2.43 Å. In the second Mo6+ site, Mo6+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mo–O bond distances ranging from 1.75–2.33 Å. In the third Mo6+ site, Mo6+ is bonded in a 4-coordinate geometry to five O2- atoms. There are a spread of Mo–O bond distances ranging from 1.74–2.34 Å. In the fourth Mo6+ site, Mo6+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mo–O bond distances ranging from 1.73–2.30 Å. There are thirteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to one K1+ and one Mo6+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one Mo6+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and two equivalent Mo6+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to three Mo6+ atoms. In the fifth O2- site, O2- is bonded in a bent 150 degrees geometry to two Mo6+ atoms. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to three K1+ and one Mo6+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+ and two Mo6+ atoms. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one Mo6+ atom. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+ and two Mo6+ atoms. In the tenth O2- site, O2- is bonded in a 1-coordinate geometry to one K1+ and three Mo6+ atoms. In the eleventh O2- site, O2- is bonded in a distorted single-bond geometry to three K1+ and one Mo6+ atom. In the twelfth O2- site, O2- is bonded in a 1-coordinate geometry to one K1+ and two equivalent Mo6+ atoms. In the thirteenth O2- site, O2- is bonded in a bent 120 degrees geometry to two Mo6+ atoms.