P4Se3I2 is Indium-like structured and crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four p4 se3 i2 molecules. There are three 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 I(1) atom. In the second P site, P(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent P(1) and one Se(2) atom. In the third P site, P(3) is bonded in a trigonal non-coplanar geometry to one Se(2) and two equivalent Se(1) atoms. 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(3) atom. In the second Se site, Se(2) is bonded in an L-shaped geometry to one P(2) and one P(3) atom. I(1) is bonded in a single-bond geometry to one P(1) atom.
P4Se3I2 is Indium-like structured and crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four p4 se3 i2 molecules. There are three 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 I(1) atom. The P(1)-P(2) bond length is 2.21 Å. The P(1)-Se(1) bond length is 2.29 Å. The P(1)-I(1) bond length is 2.48 Å. In the second P site, P(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent P(1) and one Se(2) atom. The P(2)-Se(2) bond length is 2.25 Å. In the third P site, P(3) is bonded in a trigonal non-coplanar geometry to one Se(2) and two equivalent Se(1) atoms. The P(3)-Se(2) bond length is 2.24 Å. Both P(3)-Se(1) bond lengths are 2.27 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(3) atom. In the second Se site, Se(2) is bonded in an L-shaped geometry to one P(2) and one P(3) atom. I(1) is bonded in a single-bond geometry to one P(1) atom.