Materials Data on Sn3H8C2NO7 by Materials Project
(CH3)2NH2Sn3O7 crystallizes in the monoclinic P2_1 space group. The structure is two-dimensional and consists of two dimethylazanium molecules and one Sn3O7 sheet oriented in the (0, 0, 1) direction. In the Sn3O7 sheet, there are three inequivalent Sn+2.67+ sites. In the first Sn+2.67+ site, Sn+2.67+ is bonded to five O2- atoms to form distorted corner-sharing SnO5 trigonal bipyramids. There are a spread of Sn–O bond distances ranging from 1.91–2.17 Å. In the second Sn+2.67+ site, Sn+2.67+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Sn–O bond distances ranging from 1.93–2.15 Å. In the third Sn+2.67+ site, Sn+2.67+ is bonded to four O2- atoms to form corner-sharing SnO4 tetrahedra. There are a spread of Sn–O bond distances ranging from 1.91–2.05 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three Sn+2.67+ atoms. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to two Sn+2.67+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to three Sn+2.67+ atoms. In the fourth O2- site, O2- is bonded in a single-bond geometry to one Sn+2.67+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one Sn+2.67+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three Sn+2.67+ atoms. In the seventh O2- site, O2- is bonded in a single-bond geometry to one Sn+2.67+ atom.