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Synthesis of a new iron–sulfur cluster compound and its photocatalytic H 2 evolution activity through visible light irradiation
Author(s) -
Wang XiaoBo,
Zheng HuiQin,
Rao Heng,
Yao HongChang,
Fan YaoTing,
Hou HongWei
Publication year - 2016
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3481
Subject(s) - chemistry , triethylamine , photocatalysis , photosensitizer , xanthene , reagent , catalysis , photochemistry , sulfur , irradiation , proton nmr , cluster (spacecraft) , electrochemistry , visible spectrum , carbon 13 nmr , nuclear chemistry , organic chemistry , physics , optoelectronics , computer science , nuclear physics , programming language , electrode
A new iron–sulfur cluster compound, namely [(μ‐BNT)Fe 2 (CO) 6 ] ( A ; BNT = ( R )‐1,1′‐binaphthalene‐2,2′‐dithiol), was synthesized by self‐assembly of BNT with [Fe 3 (CO) 12 ] and characterized using 1 H NMR, 13 C NMR, infrared spectra and elemental analysis. The H 2 evolution activity of A was evaluated in a constructed homogeneous photocatalytic system by combining A as catalyst, xanthene dyes as photosensitizer and triethylamine as sacrificial reagent, to give efficient H 2 generation under visible‐light irradiation ( λ > 420 nm). The maximum H 2 evolution of 404 turnovers (versus catalyst) was recorded under optimal conditions in CH 3 CN–H 2 O (1:1, v/v) after 4 h irradiation. The mechanism of H 2 evolution is briefly discussed using fluorescence spectra and electrochemical analysis. Copyright © 2016 John Wiley & Sons, Ltd.