An azadithiolate bridged Fe₂S₂ complex as active site model of FeFe-hydrogenase covalently linked to a Re(CO)₃(bpy)(py) photosensitizer aiming for light-driven hydrogen production - 14/08/08

Doi : 10.1016/j.crci.2008.03.004

Weiming Gao ^a, Jianhui Liu ^a,^⁎ , Weina Jiang ^a, Mei Wang ^a, Linhong Weng ^b, Björn Åkermark ^c, Licheng Sun ^a,^d,^⁎
^a State Key Laboratory of Fine Chemical, DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), Zhongshan Road 158-40, Dalian 116012, China
^b Chemistry Department, Fudan University, Handan Road 220, Shanghai 200433, China
^c Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691 Stockholm, Sweden
^d Department of Chemistry, Organic Chemistry, School of Chemical Science and Engineering, Royal Institute of Technology (KTH), Teknikringen 30, 10044 Stockholm, Sweden

Corresponding author.Corresponding author. Department of Chemistry, Organic Chemistry, School of Chemical Science and Engineering, Royal Institute of Technology (KTH), Teknikringen 30, 10044 Stockholm, Sweden.

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Abstract

In order to create photoactive catalysts for hydrogen production, a novel trimetallic Re–Fe₂S₂ complex 4 was synthesized by the coordination of the free –PPh₂ group of the ligand of the rhenium photosensitizer 6 to an azadithiolate (ADT)-bridged diiron complex 8 with the assistance of the decarbonylation reagent Me₃NO. Complex 4 was characterized by ¹H, ¹³C, ³¹P NMR and HRMS spectra. The IR, UV–vis and electrochemical data indicate some interactions between Re and Fe₂S₂ moieties, and the photo-induced electron transfer from the excited state of the Re moiety to the Fe₂S₂ catalyst is thermodynamically feasible.

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Keywords : Bioinorganic chemistry, Catalysis, Light-driven hydrogen production, Iron–sulfur complex

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Synthesis and spectral characterizations

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Vol 11 - N° 8

P. 915-921 - août 2008 Retour au numéro

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An azadithiolate bridged Fe₂S₂ complex as active site model of FeFe-hydrogenase covalently linked to a Re(CO)₃(bpy)(py) photosensitizer aiming for light-driven hydrogen production - 14/08/08

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