Abstract
An artificial [FeFe]-hydrogenase ([FeFe]-H2ase) mimic 3II, consisting of dual organic chromophores covalently assembled to the [Fe2S2] active site, was constructed for light-driven hydrogen evolution. The structural conformation of synthetic photocatalyst was characterized crystallographically and spectroscopically. The photo-induced intramolecular electron transfer was evidently demonstrated by the combination of electrochemical, steady-state, and transient absorption spectroscopic studies. Finally, a remarkable activity was obtained in the present photocatalytic system, indicating the covalent incorporation of photosensitizer and catalytic center as a promising strategy to construct inexpensive, easily accessible [FeFe]-H2ase model photocatalysts.
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Acknowledgements
We are grateful to the National Natural Science Foundation of China (Nos. 21201022, 61106050, and 61473132), The Specialized Research Fund for the Doctoral Program of Higher Education (New Teachers, No. 20122216120001), and the Scientific and Technological Development Project of Jilin Province (No. 20150311086YY) for financial support.
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Gao, S., Zhang, WY., Duan, Q. et al. An artificial [FeFe]-hydrogenase mimic with organic chromophore-linked thiolate bridges for the photochemical production of hydrogen. Chem. Pap. 71, 617–625 (2017). https://doi.org/10.1007/s11696-016-0049-8
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DOI: https://doi.org/10.1007/s11696-016-0049-8