Substitution reactions of mono-, di- and tri-thiocarbonato complexes of iron

Abstract

The photolytic reactions of iron thiocarbonato complexes CpFe(CO)2SC(Y)Y′R [Y=Y′=O; R=2-C6H4Cl (1), 4-C6H4Cl (2); Y=S, Y′=O; R=C6H4F (3), Y=Y′=S; R=Ph (4)] with EPh3 (E=P, As, Sb) are performed. Monosubstituted complexes of the general formula CpFe(CO)(EPh3)SC(Y)Y′R [Y=Y′=O; R=2-C6H4Cl (5), 4-C6H4Cl (6); Y=S, Y′=O; R=C6H4F (7), Y=Y′=S; R=Ph (8); E=P (a), As (b), Sb (c)] have been isolated and characterized by spectroscopic analysis (UV–Vis, IR, 1H, 31P NMR) and elemental analysis. The molecular structures of CpFe(CO)(PPh3)SCO2-2-C6H4Cl (5a) and its dicarbonyl parent CpFe(CO)2SCO2-2-C6H4Cl (1) have been determined by single crystal X-ray crystallographic studies.