Synthesis and characterization of five diiron ethanedithiolate complexes with acetate group and phosphine ligands. (1st March 2019)

• Record Type: Journal Article
• Authors: Chen, Fei-Yan; He, Jiao; Mu, Chao; Liu, Xu-Feng; Li, Yu-Long; Jiang, Zhong-Qing; Wu, Hong-Ke
• Is Part Of: Polyhedron. Volume 160(2019)
• Page Start: 74
• Page End: 82
• Publication Date: 2019-03-01
• Subjects: Diiron ethanedithiolate -- Acetate ester -- Monophosphine -- Synthesis -- X-ray diffraction analysis; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2018.12.027
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Five diiron ethanedithiolate complexes [Fe2 (CO)5 (L){μ-SCH2 CH(CH2 O2 CCH3 )S}] (L = P(2-C4 H3 O)3, 2 ; P(2-C4 H3 S)3, 3 ; P(4-C6 H4 F)3, 4 ; P(4-C6 H4 Cl)3, 5 ; Ph2 PC6 H11, 6 ) containing acetate ester and phosphine ligands were prepared by CO substitution. The complexes2 –6 have been characterized by elemental analysis, IR and NMR spectra, as well as by X-ray crystallography. Moreover, the electrochemical properties were also studied. Abstract: A series of acetate ester containing diiron ethanedithiolate complexes have been synthesized and structurally characterized. CO substitution of complex [Fe2 (CO)6 {μ-SCH2 CH(CH2 O2 CCH3 )S}] (1 ) with the phosphine ligands tris(2-furyl)phosphine, tris(2-thienyl)phosphine, tris(4-fluorophenyl)phosphine, tris(4-chlorophenyl)phosphine, or cyclohexyldiphenylphosphine in the presence of the decarbonylating agent Me3 NO·2H2 O gave the phosphine-substituted diiron derivatives [Fe2 (CO)5 (L){μ-SCH2 CH(CH2 O2 CCH3 )S}] (L = P(2-C4 H3 O)3, 2 ; P(2-C4 H3 S)3, 3 ; P(4-C6 H4 F)3, 4 ; P(4-C6 H4 Cl)3, 5 ; Ph2 PC6 H11, 6 ) in 86–95% yields. The complexes2 –6 have been characterized by elemental analysis, spectroscopy, and X-ray diffraction analysis. Additionally, the electrochemical properties were investigated by cyclic voltammetry.