DOI: 10.17188/1708675
title: Materials Data on K(GeO2)2 by Materials Project

description: K(GeO2)2 crystallizes in the hexagonal P6_3 space group. The structure is three-dimensional. there are six 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 2.91–3.31 Å. In the second 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 2.88–3.28 Å. In the third K1+ site, K1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.74–3.38 Å. In the fourth K1+ site, K1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of K–O bond distances ranging from 2.78–2.81 Å. In the fifth K1+ site, K1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of K–O bond distances ranging from 2.74–2.82 Å. In the sixth 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 2.89–3.28 Å. There are eight inequivalent Ge+3.50+ sites. In the first Ge+3.50+ site, Ge+3.50+ is bonded to four O2- atoms to form corner-sharing GeO4 tetrahedra. There is two shorter (1.83 Å) and two longer (1.84 Å) Ge–O bond length. In the second Ge+3.50+ site, Ge+3.50+ is bonded to four O2- atoms to form corner-sharing GeO4 tetrahedra. There are a spread of Ge–O bond distances ranging from 1.80–1.85 Å. In the third Ge+3.50+ site, Ge+3.50+ is bonded to four O2- atoms to form corner-sharing GeO4 tetrahedra. There is two shorter (1.84 Å) and two longer (1.85 Å) Ge–O bond length. In the fourth Ge+3.50+ site, Ge+3.50+ is bonded to four O2- atoms to form corner-sharing GeO4 tetrahedra. There are a spread of Ge–O bond distances ranging from 1.85–1.88 Å. In the fifth Ge+3.50+ site, Ge+3.50+ is bonded to four O2- atoms to form corner-sharing GeO4 tetrahedra. There are a spread of Ge–O bond distances ranging from 1.83–1.85 Å. In the sixth Ge+3.50+ site, Ge+3.50+ is bonded to four O2- atoms to form corner-sharing GeO4 tetrahedra. There are a spread of Ge–O bond distances ranging from 1.80–1.86 Å. In the seventh Ge+3.50+ site, Ge+3.50+ is bonded to four O2- atoms to form corner-sharing GeO4 tetrahedra. There is three shorter (1.85 Å) and one longer (1.86 Å) Ge–O bond length. In the eighth Ge+3.50+ site, Ge+3.50+ is bonded to four O2- atoms to form corner-sharing GeO4 tetrahedra. There are a spread of Ge–O bond distances ranging from 1.84–1.86 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to two Ge+3.50+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent K1+ and two Ge+3.50+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one K1+ and two Ge+3.50+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two K1+ and two Ge+3.50+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent K1+ and two Ge+3.50+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one K1+ and two Ge+3.50+ atoms. In the seventh O2- site, O2- is bonded in a 2-coordinate geometry to two K1+ and two Ge+3.50+ atoms. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to one K1+ and two Ge+3.50+ atoms. In the ninth O2- site, O2- is bonded in a distorted trigonal planar geometry to one K1+ and two Ge+3.50+ atoms. In the tenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one K1+ and two Ge+3.50+ atoms. In the eleventh O2- site, O2- is bonded in a 2-coordinate geometry to two K1+ and two Ge+3.50+ atoms. In the twelfth O2- site, O2- is bonded in a distorted trigonal planar geometry to one K1+ and two Ge+3.50+ atoms. In the thirteenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one K1+ and two Ge+3.50+ atoms. In the fourteenth O2- site, O2- is bonded in a 2-coordinate geometry to two K1+ and two Ge+3.50+ atoms. In the fifteenth O2- site, O2- is bonded in a 3-coordinate geometry to one K1+ and two Ge+3.50+ atoms. In the sixteenth O2- site, O2- is bonded in a 2-coordinate geometry to two K1+ and two Ge+3.50+ atoms.