Phenyl-functionalized diiron propanedithiolato complexes with a chelated 1,2-bis(diphenylphosphino)benzene ligand |
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| Authors: | Ge Guo Hui-Ling Gao Feng-Sha Shen Shi-Wei Ge Jing-Yan Shang |
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| Affiliation: | 1. College of Chemistry &2. Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, China |
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| Abstract: | Reaction of 1,2-bis(diphenylphosphino)benzene (dppbz) with PhpdtFe2(CO)6 (A) in hot acetonitrile yielded a chelated complex, PhpdtFe2(CO)4(κ2-dppbz) (1), in moderate yield. Further treatment using an excess of HBF4·Et2O resulted in the protonation of 1 at room temperature in dichloromethane solution, forming a hydride [Phpdt(μ-H)Fe2(CO)4(κ2-dppbz)]BF4 (2). The chemical structures of both complexes were fully characterized by spectroscopic methods and X-ray crystallography, and the electronic structures were further investigated by UV-vis spectroscopy. The cyclic voltammetry (CV) of 1 in the absence and presence of acetic acid were also investigated. |
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| Keywords: | [FeFe]-hydrogenase bidentate phosphine ligand bridging hydride crystal structure electrochemistry |
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