HEXAORGANO-SUBSTITUTED TRIATOMICS R3XYZR3: THE CONFIGURATIONS OF ORGANOMETALLIC SULPHIDES (R3M)2S AND THE CRYSTAL AND MOLECULAR STRUCTURE OF THIO-BIS

Article abstract of DOI:10.1016/S0022-328X(00)85835-0

Crystals of thio-bis, S(Ph3Sn)2, are orthorhombic, space-group P2₁2₁2₁, with a = 18.469(5), b = 17.648(5), c = 9.848(6) Angstroem and Z = 4.The SnS distances are 2.405(9) and 2.417(7) Angstroem and SnSSn angle is 107.3(2) deg: there are no anomalous features in the structure analogous to those in O(Ph3Sn)2.MNDO calculations for a series of organometallic sulphides +n (M = Be, B, C, N, Si, P) indicate that the inversion barrier to linearity increases monotonically, and the skeletal bending force constant at linearity decreases correspondingly as the group Me3M becomes more electronegative.