Materials Data on Na2GeO10 by Materials Project
Na2GeO10 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded in a 4-coordinate geometry to six O atoms. There are a spread of Na–O bond distances ranging from 2.28–2.83 Å. In the second Na site, Na is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Na–O bond distances ranging from 2.30–2.99 Å. Ge is bonded in a distorted tetrahedral geometry to four O atoms. There are a spread of Ge–O bond distances ranging from 1.66–1.96 Å. There are ten inequivalent O sites. In the first O site, O is bonded in a bent 150 degrees geometry to one Na and one O atom. The O–O bond length is 1.34 Å. In the second O site, O is bonded in a distorted trigonal planar geometry to two Na and one O atom. The O–O bond length is 1.34 Å. In the third O site, O is bonded in a distorted T-shaped geometry to two equivalent Na and one O atom. The O–O bond length is 1.35 Å. In the fourth O site, O is bonded in a distorted water-like geometry to one Ge and one O atom. In the fifth O site, O is bonded in a 4-coordinate geometry to three Na and one O atom. The O–O bond length is 1.35 Å. In the sixth O site, O is bonded in a distorted bent 150 degrees geometry to two Na and one Ge atom. In the seventh O site, O is bonded in a 3-coordinate geometry to two Na and one O atom. The O–O bond length is 1.33 Å. In the eighth O site, O is bonded in a distorted bent 120 degrees geometry to one Ge and one O atom. In the ninth O site, O is bonded in a water-like geometry to one Ge and one O atom. In the tenth O site, O is bonded in a 2-coordinate geometry to one Na and two O atoms.