Diiron ethanedithiolate complexes with pendant ferrocene: Synthesis, characterization and electrochemistry. (15th July 2018)

• Record Type: Journal Article
• Authors: Lu, Dan-Ting; He, Jiao; Yu, Xiao-Yong; Liu, Xu-Feng; Li, Yu-Long; Jiang, Zhong-Qing
• Is Part Of: Polyhedron. Volume 149(2018)
• Page Start: 1
• Page End: 6
• Publication Date: 2018-07-15
• Subjects: Diiron ethanedithiolate -- Ferrocene -- Monophosphine -- X-ray crystallography -- Electrochemistry; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2018.04.015
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Three diiron ethanedithiolate complexes containing pendant ferrocene were prepared by esterification or carbonyl substitution. The new complexes were characterized by elemental analysis, IR and NMR spectra, as well as by X-ray crystallography. Furthermore, the electrochemical properties were studied by cyclic voltammetry. Abstract: Three diiron ethanedithiolate complexes containing pendant ferrocene were prepared and structurally characterized. Reaction of the complex [{ μ -SCH2 CH(CH2 OH)S}Fe2 (CO)6 ] (1 ) with ferrocenecarboxylic acid in the presence of N, N ′-dicyclohexylcarbodiimide and 4-dimethylaminopyridine afforded complex [{ μ -SCH2 CH(CH2 O2 CFc)S}Fe2 (CO)6 ] (Fc = ferrocenyl) (2 ) in 73% yield. Further treatment of complex 2 with a monophosphine ligand tris(2-methoxyphenyl)phosphine or tris(2-furyl)phosphine in the presence of the decarbonylating agent Me3 NO·2H2 O yielded the monophosphine-substituted complexes [{ μ -SCH2 CH(CH2 O2 CFc)S}Fe2 (CO)5 P(2-C6 H4 OCH3 )3 ] (3 ) and [{ μ -SCH2 CH(CH2 O2 CFc)S}Fe2 (CO)5 P(2-C4 H3 O)3 ] (4 ) in 94% and 85% yields, respectively. The complexes 2 –4 were characterized by elemental analysis, spectroscopy and X-ray crystallography. In addition, electrochemical properties of the complexes 2 –4 were studied by cyclic voltammetry.