Materials Data on Rb2GeO3 by Materials Project
Rb2GeO3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are six inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Rb–O bond distances ranging from 2.75–3.14 Å. In the second Rb1+ site, Rb1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Rb–O bond distances ranging from 2.98–3.36 Å. In the third Rb1+ site, Rb1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Rb–O bond distances ranging from 2.76–3.03 Å. In the fourth Rb1+ site, Rb1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Rb–O bond distances ranging from 2.79–3.20 Å. In the fifth Rb1+ site, Rb1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Rb–O bond distances ranging from 2.89–3.13 Å. In the sixth Rb1+ site, Rb1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Rb–O bond distances ranging from 2.89–2.98 Å. There are three inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four O2- atoms to form corner-sharing GeO4 tetrahedra. There are a spread of Ge–O bond distances ranging from 1.74–1.84 Å. In the second Ge4+ site, Ge4+ is bonded to four O2- atoms to form corner-sharing GeO4 tetrahedra. There is two shorter (1.75 Å) and two longer (1.84 Å) Ge–O bond length. In the third Ge4+ site, Ge4+ is bonded to four O2- atoms to form corner-sharing GeO4 tetrahedra. There are a spread of Ge–O bond distances ranging from 1.74–1.84 Å. There are nine inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to five Rb1+ and one Ge4+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Rb1+ and two Ge4+ atoms. In the third O2- site, O2- is bonded in a distorted single-bond geometry to five Rb1+ and one Ge4+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to five Rb1+ and one Ge4+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to two Rb1+ and two Ge4+ atoms. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to four Rb1+ and one Ge4+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two Rb1+ and two Ge4+ atoms. In the eighth O2- site, O2- is bonded in a 1-coordinate geometry to four Rb1+ and one Ge4+ atom. In the ninth O2- site, O2- is bonded in a 1-coordinate geometry to four Rb1+ and one Ge4+ atom.