Preparation of complexes formed in the reaction between diironnanocarbonyl and tetraalkyl(phenyl)diphosphine disulfides, R₂P(S)P(S)R₂ (R=Et, n-Pr, n-Bu, Ph)

Abstract

Fe₂(CO)₉ and R₂P(S)P(S)R₂ (R = Et, n-Pr, n-Bu, Ph) react to form two types of cluster complexes Fe₃(CO)₉(μ₃-S)₂ (1), Fe₂(CO)₆(μ-SPR₂)₂ (2A)–(2D), [2A, R = Et; 2B, R = n-Pr; 2C, R = n-Bu; 2D, R = Ph]. The complexes result from phosphorus–phosphorus bond scission; in the former sulfur abstraction has also occurred. The complexes have been characterized by elemental analyses, FT-IR and ³¹P-[¹H]-NMR spectroscopy and mass spectrometry.

Keywords:

• Diironenneacarbonyl
• Diphosphinedisulfide
• Iron
• Dimer

Acknowledgements

We thank TUBİTAK and Research Foundation of Ege University for funds and University of Bristol for allocation of time at the NMR and Mass Spectra facilities.