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Synthesis and electrochemistry of phenyl-functionalized diiron propanedithiolate complexes with bidentate phosphine ligands |
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| Authors: | Chang-Gong Li Yong-Fang Li Jing-Yan Shang Tian-Jun Lou |
| Affiliation: | 1. College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, 453003, People’s Republic of China 2. Xinxiang Municipal Key Laboratory of Functional Organic Molecular, Xinxiang, 453003, People’s Republic of China |
| Abstract: | Carbonyl substitution reactions of [μ-(SCH2)2CHC6H5]Fe2(CO)6 with bidentate phosphine ligands, cis-1,2-bis(diphenylphosphine)ethylene (cis-dppv) and N,N-bis(diphenylphosphine)propylamine [(Ph2P)2N-Pr-n], yielded an asymmetrically substituted chelated complex [(μ-SCH2)2CHC6H5]Fe2(CO)4(k 2-dppv) and a symmetrically substituted bridging complex [(μ-SCH2)2CHC6H5]Fe2(CO)4[μ-(PPh2)2N-Pr-n] under different reaction conditions. Both complexes were fully characterized by spectroscopic methods and by X-ray crystallography. Their electrochemical behaviors were observed by cyclic voltammetry, and the catalytic electrochemical reduction of protons from acetic or trifluoroacetic acid to give dihydrogen mediated by complex [(μ-SCH2)2CHC6H5]Fe2(CO)4(k 2-dppv) was investigated. |
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