Chemistry of Et3P·CS2 metal complexes: Synthesis of 1,1-dithiolate complexes via nucleophilic attacks on [(triphos)Co(S2CPEt3)](BPh4)2. X-ray structure of [(triphos)Co(S2CO)]

Article abstract of DOI:10.1021/ic00142a012

The synthesis of the 1,1-dithiolate cobalt(II) complexes [(triphos)Co(S₂C(H)PEt₃)]BPh₄ (2), [(triphos)Co(S₂CO)] (3), and [(triphos)Co(S₂CS)] (4) (triphos = 1,1,1-tris((diphenylphosphino)methyl)ethane) via the reaction of complex [(triphos)Co(S₂CPEt₃)](BPh₄)₂ (1) with nucleophiles has been described. All the complexes have been characterized by appropriate physical methods. The molecular structure of 3 has been determined from counter diffraction data. Crystal data for 3: a = 20.294 (8) ?, b = 17.954 (7) ?, c = 10.218 (4) ?, orthorhombic, space group Pn2₁a, Z = 4. The stucture was refined by full-matrix least-squares techniques to R and R_w of 0.063 and 0.055, respectively. The cobalt atom is five-coordinated by the three phosphorus atoms of the triphos ligand and by the two sulfur atoms of the dithiocarbonate group in a distorted-square-pyramidal environment.