P4Se3Br2 is Indium-like structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of eight P4Se3Br2 clusters. In four of the P4Se3Br2 clusters, there are two inequivalent P sites. In the first P site, P(1) is bonded in a distorted trigonal non-coplanar geometry to one P(2), one Se(1), and one Br(1) atom. In the second P site, P(2) is bonded in a distorted trigonal non-coplanar geometry to one P(1), one Se(1), and one Se(2) atom. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a water-like geometry to one P(1) and one P(2) atom. In the second Se site, Se(2) is bonded in a water-like geometry to two equivalent P(2) atoms. Br(1) is bonded in a single-bond geometry to one P(1) atom. In four of the P4Se3Br2 clusters, there are two inequivalent P sites. In the first P site, P(3) is bonded in a 3-coordinate geometry to one P(4), one Se(3), and one Br(2) atom. In the second P site, P(4) is bonded in a distorted trigonal non-coplanar geometry to one P(3), one Se(3), and one Se(4) atom. There are two inequivalent Se sites. In the first Se site, Se(3) is bonded in a water-like geometry to one P(3) and one P(4) atom. In the second Se site, Se(4) is bonded in an L-shaped geometry to two equivalent P(4) atoms. Br(2) is bonded in a single-bond geometry to one P(3) atom.
P4Se3Br2 is Indium-like structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of eight P4Se3Br2 clusters. In four of the P4Se3Br2 clusters, there are two inequivalent P sites. In the first P site, P(1) is bonded in a distorted trigonal non-coplanar geometry to one P(2), one Se(1), and one Br(1) atom. The P(1)-P(2) bond length is 2.19 Å. The P(1)-Se(1) bond length is 2.28 Å. The P(1)-Br(1) bond length is 2.28 Å. In the second P site, P(2) is bonded in a distorted trigonal non-coplanar geometry to one P(1), one Se(1), and one Se(2) atom. The P(2)-Se(1) bond length is 2.27 Å. The P(2)-Se(2) bond length is 2.24 Å. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a water-like geometry to one P(1) and one P(2) atom. In the second Se site, Se(2) is bonded in a water-like geometry to two equivalent P(2) atoms. Br(1) is bonded in a single-bond geometry to one P(1) atom. In four of the P4Se3Br2 clusters, there are two inequivalent P sites. In the first P site, P(3) is bonded in a 3-coordinate geometry to one P(4), one Se(3), and one Br(2) atom. The P(3)-P(4) bond length is 2.20 Å. The P(3)-Se(3) bond length is 2.29 Å. The P(3)-Br(2) bond length is 2.26 Å. In the second P site, P(4) is bonded in a distorted trigonal non-coplanar geometry to one P(3), one Se(3), and one Se(4) atom. The P(4)-Se(3) bond length is 2.26 Å. The P(4)-Se(4) bond length is 2.24 Å. There are two inequivalent Se sites. In the first Se site, Se(3) is bonded in a water-like geometry to one P(3) and one P(4) atom. In the second Se site, Se(4) is bonded in an L-shaped geometry to two equivalent P(4) atoms. Br(2) is bonded in a single-bond geometry to one P(3) atom.