Materials Data on GdBO3 by Materials Project
GdBO3 crystallizes in the trigonal R32 space group. The structure is three-dimensional. Gd3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Gd–O bond distances ranging from 2.31–2.54 Å. B3+ is bonded to four O2- atoms to form corner-sharing BO4 tetrahedra. There is two shorter (1.46 Å) and two longer (1.50 Å) B–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to three equivalent Gd3+ and one B3+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two equivalent Gd3+ and two equivalent B3+ atoms.