BaPt2P3 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 12-coordinate geometry to one Pt(1), one Pt(2), three equivalent Pt(3), two equivalent P(1), two equivalent P(3), and three equivalent P(2) atoms. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted square co-planar geometry to two equivalent Ba(1), two equivalent P(1), and two equivalent P(2) atoms. In the second Pt site, Pt(2) is bonded in a distorted octahedral geometry to two equivalent Ba(1), two equivalent P(1), and two equivalent P(3) atoms. In the third Pt site, Pt(3) is bonded in a 4-coordinate geometry to three equivalent Ba(1), one P(1), one P(2), and two equivalent P(3) atoms. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 6-coordinate geometry to two equivalent Ba(1), one Pt(1), one Pt(2), one Pt(3), and one P(3) atom. In the second P site, P(2) is bonded in a 6-coordinate geometry to three equivalent Ba(1), one Pt(1), one Pt(3), and one P(2) atom. In the third P site, P(3) is bonded in a 6-coordinate geometry to two equivalent Ba(1), one Pt(2), two equivalent Pt(3), and one P(1) atom.
BaPt2P3 crystallizes in the monoclinic P2_1/c space group. Ba(1) is bonded in a 12-coordinate geometry to one Pt(1), one Pt(2), three equivalent Pt(3), two equivalent P(1), two equivalent P(3), and three equivalent P(2) atoms. The Ba(1)-Pt(1) bond length is 3.86 Å. The Ba(1)-Pt(2) bond length is 3.37 Å. There is one shorter (3.54 Å) and two longer (3.60 Å) Ba(1)-Pt(3) bond lengths. There is one shorter (3.46 Å) and one longer (3.80 Å) Ba(1)-P(1) bond length. There is one shorter (3.15 Å) and one longer (3.66 Å) Ba(1)-P(3) bond length. There are a spread of Ba(1)-P(2) bond distances ranging from 3.23-3.63 Å. There are three inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted square co-planar geometry to two equivalent Ba(1), two equivalent P(1), and two equivalent P(2) atoms. Both Pt(1)-P(1) bond lengths are 2.33 Å. Both Pt(1)-P(2) bond lengths are 2.36 Å. In the second Pt site, Pt(2) is bonded in a distorted octahedral geometry to two equivalent Ba(1), two equivalent P(1), and two equivalent P(3) atoms. Both Pt(2)-P(1) bond lengths are 2.44 Å. Both Pt(2)-P(3) bond lengths are 2.35 Å. In the third Pt site, Pt(3) is bonded in a 4-coordinate geometry to three equivalent Ba(1), one P(1), one P(2), and two equivalent P(3) atoms. The Pt(3)-P(1) bond length is 2.33 Å. The Pt(3)-P(2) bond length is 2.33 Å. There is one shorter (2.31 Å) and one longer (2.32 Å) Pt(3)-P(3) bond length. There are three inequivalent P sites. In the first P site, P(1) is bonded in a 6-coordinate geometry to two equivalent Ba(1), one Pt(1), one Pt(2), one Pt(3), and one P(3) atom. The P(1)-P(3) bond length is 2.21 Å. In the second P site, P(2) is bonded in a 6-coordinate geometry to three equivalent Ba(1), one Pt(1), one Pt(3), and one P(2) atom. The P(2)-P(2) bond length is 2.20 Å. In the third P site, P(3) is bonded in a 6-coordinate geometry to two equivalent Ba(1), one Pt(2), two equivalent Pt(3), and one P(1) atom.