Materials Data on Zn(BO3)3 by Materials Project

Zn(BO3)3 crystallizes in the orthorhombic Pnma space group. The structure is one-dimensional and consists of two Zn(BO3)3 ribbons oriented in the (0, 0, 1) direction. Zn is bonded in a rectangular see-saw-like geometry to four O atoms. There are a spread of Zn–O bond distances ranging from 1.96–1.99 Å. There are two inequivalent B sites. In the first B site, B is bonded to four O atoms to form corner-sharing BO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.42–1.52 Å. In the second B site, B is bonded in a trigonal planar geometry to three O atoms. There is two shorter (1.37 Å) and one longer (1.43 Å) B–O bond length. There are six inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to two B atoms. In the second O site, O is bonded in a single-bond geometry to one B atom. In the third O site, O is bonded in a bent 120 degrees geometry to one Zn and one B atom. In the fourth O site, O is bonded in a single-bond geometry to one Zn atom. In the fifth O site, O is bonded in a trigonal planar geometry to one Zn and two equivalent B atoms. In the sixth O site, O is bonded in a single-bond geometry to one B atom.