Synthetic and structural studies of the diiron toluenedithiolate carbonyl complexes with monophosphine ligands |
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| Authors: | Xu-Feng Liu |
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| Institution: | 1. College of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo, Chinankxfliu@126.com |
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| Abstract: | Four diiron toluenedithiolate complexes 2–5 with monophosphine ligands are reported. Treatment of μ-SC6H3(CH3)S-μ]Fe2(CO)6 (1) with tris(3-chlorophenyl)phosphine, tris(4-chlorophenyl)phosphine, tris(4-methylphenyl)phosphine or 2-(diphenylphosphino)benzaldehyde, and Me3NO?2H2O in MeCN resulted in the formation of μ-SC6H3(CH3)S-μ]Fe2(CO)5P(3-C6H4Cl)3] (2), μ-SC6H3(CH3)S-μ]Fe2(CO)5P(4-C6H4Cl)3] (3), μ-SC6H3(CH3)S-μ]Fe2(CO)5P(4-C6H4CH3)3] (4), and μ-SC6H3(CH3)S-μ]Fe2(CO)5Ph2P(2-C6H4CHO)] (5) in 64–82% yields. Complexes 2–5 have been characterized by elemental analysis, IR, 1H NMR, 31P{1H} NMR, 13C{1H} NMR and further confirmed by single crystal X-ray diffraction analysis. The molecular structures show that 2–5 contain a butterfly diiron toluenedithiolate cluster coordinated by five terminal carbonyls and an apical monophosphine. |
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| Keywords: | Diiron toluenedithiolate monophosphine ligand carbonyl substitution synthesis crystal structure |
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