Electron-transfer platinum complexes of esters of dithiocarbazic acid. The crystal and molecular structure of [Pt{N(CH2Ph)NC(S)SMe}2]
Abstract
The ligand behaviour of the esters of dithiocarbazic acid NHRNHC(S)SR′ in intensely coloured complexes containing the doubly deprotonated ligands [Pt{NRNC(S)SR′}2](R = H, R′= CH2Ph; R = CH2Ph, R′= Me or CH2Ph; R = Pri, R′= Me; R = hexyl, R′= Me or CH2Ph) has been investigated by electronic, i.r., and 1H n.m.r. spectroscopy and electrochemistry. The crystal and molecular structure of [Pt{N(CH2Ph)NC(S)SMe}2] has also been determined. All the complexes have a square-planar trans-PtN2S2 chromophore; they are dithiolene-like and show electron-transfer properties.