期刊
CHEMICAL COMMUNICATIONS
卷 47, 期 11, 页码 3114-3116出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cc05536k
关键词
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资金
- Fonds der Chemischen Insustrie (FCI)
- Institute of Inorganic Chemistry II
A new mechanism for enhancing the visible light absorption of a homogeneous polyoxovanadate system is described. The photoactive pentanuclear {V-5} isopolyoxovanadate cluster is formed in situ by a thermally-induced condensation reaction starting from a tetranuclear {V-4} precursor. Upon irradiation with visible light, {V-5} undergoes a light induced reduction reaction resulting in the formation of a 2-electron reduced {V-10} cluster. Simultaneously, the oxidant methanol is selectively oxidized to formaldehyde. The {V-10} cluster can subsequently be re-oxidized using H2O2 or O-2.
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