Materials Data on Ga2SeS by Materials Project

GaSeGaS is Hittorf-derived structured and crystallizes in the trigonal P-3m1 space group. The structure is two-dimensional and consists of two GaS sheets oriented in the (0, 0, 1) direction and two GaSe sheets oriented in the (0, 0, 1) direction. In each GaS sheet, Ga2+ is bonded in a trigonal non-coplanar geometry to three equivalent S2- atoms. All Ga–S bond lengths are 2.39 Å. S2- is bonded in a trigonal non-coplanar geometry to three equivalent Ga2+ atoms. In each GaSe sheet, Ga2+ is bonded in a distorted trigonal non-coplanar geometry to three equivalent Se2- atoms. All Ga–Se bond lengths are 2.47 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent Ga2+ atoms.