Syntheses and structures of mono-, di- and tetranuclear rhodium or iridium complexes of thiacalix[4]arene derivatives†
Abstract
The reactions of [Cp*MCl2]2 (Cp* = η5-C5Me5, M = Rh, Ir) with thiacalix[4]arene (TC4A(OH)4) and tetramercaptothiacalix[4]arene (TC4A(SH)4) gave the mononuclear complexes [(Cp*M){η3-TC4A(OH)2(O)2}] and the dinuclear complexes [(Cp*M)2{η3∶η3-TC4A(S)4}] respectively, while the analogous reactions with dimercaptothiacalix[4]arene (TC4A(OH)2(SH)2) produced the tetranuclear complexes [(Cp*M)2(Cp*MCl2)2-{η3∶η3∶η1∶η1-TC4A(O)2(S)2}].