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GaSe is black P-derived structured and crystallizes in the trigonal R3m space group. The structure is two-dimensional and consists of six GaSe sheets oriented in the (0, 0, 1) direction. Ga2+ is bonded in a distorted trigonal non-coplanar geometry to three equivalent Se2- atoms. All Ga–Se bond lengths are 2.50 Å. Se2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ga2+ atoms.
Ga2Se3 crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are two inequivalent Ga3+ sites. In the first Ga3+ site, Ga3+ is bonded to four Se2- atoms to form corner-sharing GaSe4 tetrahedra. There are a spread of Ga–Se bond distances ranging from 2.38–2.51 Å. In the second Ga3+ site, Ga3+ is bonded to four Se2- atoms to form corner-sharing GaSe4 tetrahedra. There are a spread of Ga–Se bond distances ranging from 2.37–2.50 Å. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a trigonal non-coplanar geometry to three Ga3+ atoms. In the second Se2- site, Se2- is bonded in a water-like geometry to two Ga3+ atoms. In the third Se2- site, Se2- is bonded in a trigonal non-coplanar geometry to three Ga3+ atoms.
GaSe is black P-derived structured and crystallizes in the hexagonal P-6m2 space group. The structure is two-dimensional and consists of four GaSe sheets oriented in the (0, 0, 1) direction. Ga2+ is bonded in a distorted trigonal non-coplanar geometry to three equivalent Se2- atoms. All Ga–Se bond lengths are 2.50 Å. Se2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ga2+ atoms.
GaSe is black P-derived structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is two-dimensional and consists of four GaSe sheets oriented in the (0, 0, 1) direction. Ga2+ is bonded in a distorted trigonal non-coplanar geometry to three equivalent Se2- atoms. All Ga–Se bond lengths are 2.50 Å. Se2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ga2+ atoms.
GaSe crystallizes in the hexagonal P6_3/mmc space group. The structure is two-dimensional and consists of four GaSe sheets oriented in the (0, 0, 1) direction. Ga2+ is bonded in a distorted trigonal non-coplanar geometry to three equivalent Se2- atoms. All Ga–Se bond lengths are 2.59 Å. Se2- is bonded in a 3-coordinate geometry to three equivalent Ga2+ atoms.
GaSe is black P-derived structured and crystallizes in the hexagonal P6_3mc space group. The structure is two-dimensional and consists of eight GaSe sheets oriented in the (0, 0, 1) direction. Ga2+ is bonded in a distorted trigonal non-coplanar geometry to three equivalent Se2- atoms. All Ga–Se bond lengths are 2.49 Å. Se2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Ga2+ atoms.
Ga2Se3 crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are two inequivalent Ga3+ sites. In the first Ga3+ site, Ga3+ is bonded in a 4-coordinate geometry to four Se2- atoms. There are a spread of Ga–Se bond distances ranging from 2.64–3.25 Å. In the second Ga3+ site, Ga3+ is bonded in a trigonal planar geometry to three Se2- atoms. There are a spread of Ga–Se bond distances ranging from 2.27–2.47 Å. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 4-coordinate geometry to three Ga3+ and one Se2- atom. The Se–Se bond length is 2.38 Å. In the second Se2- site, Se2- is bonded in a water-like geometry to two Ga3+ atoms. In the third Se2- site, Se2- is bonded in a distorted single-bond geometry to two Ga3+ and one Se2- atom.