Synthetic and Structural Studies on Some New Butterfly Fe/S Cluster Complexes Containing 2,6-(CH2)2C5H3N or (CH2)2 Groups |
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| Authors: | Pei-Hua Zhao Yun-Feng Liu Kuang-Kuang Xiong Ya-Qing Liu |
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| Institution: | 1. Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, College of Materials Science and Engineering, North University of China, Taiyuan, 030051, People’s Republic of China
2. College of Public Health, Shanxi Medical University, Taiyuan, 030001, People’s Republic of China
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| Abstract: | Four new butterfly Fe/S cluster complexes bearing 2,6-(CH2)2C5H3N or (CH2)2 groups, as the active site models of FeFe]-hydrogenase, have been prepared by condensation reaction and structurally characterized. Treatments of the parent complex Fe2(CO)6(μ-SCH2)2CHCO2H] (A) with 2,6-(HOCH2)2C5H3N or HOCH2CH2OH in the presence of 4-dimethylaminopyridine and dicyclohexylcarbodiimide afforded the single-butterfly Fe/S complexes Fe2(CO)6(μ-SCH2)2CHC(O)OCH2(2,6-C5H3N)CH2OH] (1) and Fe2(CO)6(μ-SCH2)2CHC(O)OCH2CH2OH] (3) and the double-butterfly Fe/S complexes Fe2(CO)6(μ-SCH2)2CHC(O)OCH2]2(2,6-C5H3N) (2) and Fe2(CO)6(μ-SCH2)2CHC(O)OCH2]2 (4). The new complexes 1–4 were fully characterized by elemental analysis, ESI-MS, IR, and 1H (13C) NMR spectroscopy. |
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