Bidentate Phosphine Ligand Based Fe2S2-Containing Macromolecules: Synthesis, Characterization, and Catalytic Electrochemical Hydrogen Production
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- 作者：Weiming Gao ; Jianhui Liu ; Bjö ; rn Å ; kermark ; Licheng Sun
- 刊名：Inorganic Chemistry
- 出版年：2006
- 出版时间：November 13, 2006
- 年：2006
- 卷：45
- 期：23
- 页码：9169 - 9171
- 全文大小：78K
- 年卷期：v.45,no.23(November 13, 2006)
- ISSN：1520-510X
文摘
The reaction of [Fe2(CO)6(
-SCH2)2NCH2CH2N(-SCH2)2Fe2(CO)6](1) with 1,2-bis(diphenylphosphino)ethane in the presence of Me3NO·2H2O affords two structurally different metallomacromolecules: a dimer of the type [{Fe2(CO)5(-SCH2)2NCH2CH2N(-SCH2)2Fe2(CO)5}(Ph2PCH2)2] (2) and a tetramer species containingeight iron centers with an overall formula of [{Fe2(CO)6(-SCH2)2NCH2CH2N(-SCH2)2Fe2(CO)5}2(Ph2PCH2)2] (3). Their structureshave been determined by X-ray crystallography, showing onemacrocyclic complex (2) and one linear complex (3). Electrochemical hydrogen evolution catalyzed by these two complexes withca. 80-90 single-run turnovers is observed, indicating goodpotential as catalysts for future applications.
-SCH2)2NCH2CH2N(-SCH2)2Fe2(CO)6](1) with 1,2-bis(diphenylphosphino)ethane in the presence of Me3NO·2H2O affords two structurally different metallomacromolecules: a dimer of the type [{Fe2(CO)5(-SCH2)2NCH2CH2N(-SCH2)2Fe2(CO)5}(Ph2PCH2)2] (2) and a tetramer species containingeight iron centers with an overall formula of [{Fe2(CO)6(-SCH2)2NCH2CH2N(-SCH2)2Fe2(CO)5}2(Ph2PCH2)2] (3). Their structureshave been determined by X-ray crystallography, showing onemacrocyclic complex (2) and one linear complex (3). Electrochemical hydrogen evolution catalyzed by these two complexes withca. 80-90 single-run turnovers is observed, indicating goodpotential as catalysts for future applications.