Crystal structures of (Z)-(ethene-1,2-diyl)bis(diphenylphosphine sulfide) and its complex with PtII dichloride

The crystal structures of (Z)-(ethene-1,2-diyl)bis(diphenylphosphine sulfide), C26H22P2S2 (I), along with its complex with Pt-II dichloride, dichlorido[( Z)-(ethene-1,2-diyl)bis(diphenylphosphine sulfide)-kappa(2) S,S']platinum(II), [PtCl2((CHPS2)-H-26-P-22-S-2)] (II), are described here. Compound I features P = S bond lengths of 1.9571 (15) and 1.9529 (15) A degrees, with a torsion angle of 166.24 (7)degrees between the two phosphine sulfide groups. The crystal of compound I features both intramolecular C-H. . .S hydrogen bonds and pi-pi interactions. Molecules of compound I are held together with intermolecular pi-pi and C-H. . .pi interactions to form chains that run parallel to the z-axis. The intermolecular C-H. . .pi interaction has a H. . .Cg distance of 2.63 A degrees, a D. . .Cg distance of 3.573 (5) A degrees and a D-H. . .Cg angle of 171 degrees (where Cg refers to the centroid of one of the phenyl rings). These chains are linked by relatively long C-H. . .S hydrogen bonds with D. . .A distances of 3.367 (4) and 3.394 (4) A degrees with DH. . .A angles of 113 and 115 degrees. Compound II features Pt-Cl and Pt-S bond lengths of 2.3226 (19) and 2.2712 (19) A degrees, with a P S bond length of 2.012 (3) A degrees. The PtII center adopts a square-planar geometry, with Cl-Pt-Cl and S-Pt-S bond angles of 90.34 (10) and 97.19 (10)degrees, respectively. Molecules of compound II are linked in the crystal by intermolecular C-H. . .Cl and C-H. . .S hydrogen bonds.

Automated summary

The crystal structures of (Z)-(ethene-1,2-diyl)bis(diphenylphosphine sulfide) and its complex with Pt-II dichloride are described. Compound I features P = S bonds with a torsion angle between the two phosphine sulfide groups. The crystal structure of compound I exhibits both intramolecular C-H. . .S hydrogen bonds and pi-pi interactions. Compound II adopts a square-planar geometry. Molecules of compound II are linked by intermolecular C-H. . .Cl and C-H. . .S hydrogen bonds.