Robust Cuprous Phenanthroline Sensitizer for Solar Hydrogen Photocatalysis

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• 作者：Rony S. Khnayzer ; Catherine E. McCusker ; Babatunde S. Olaiya ; Felix N. Castellano
• 刊名：Journal of the American Chemical Society
• 出版年：2013
• 出版时间：September 25, 2013
• 年：2013
• 卷：135
• 期：38
• 页码：14068-14070
• 全文大小：200K
• 年卷期：v.135,no.38(September 25, 2013)
• ISSN：1520-5126

文摘

The Cu(I) metal-to-ligand charge-transfer complex, [Cu(dsbtmp)₂]⁺ (dsbtmp = 2,9-di(sec-butyl)-3,4,7,8-tetramethyl-1,10-phenanthroline), exhibits outstanding stability as a visible-light-absorbing photosensitizer in hydrogen-evolving homogeneous photocatalysis. In concert with the Co(dmgH)₂(py)Cl water reduction catalyst and N,N-dimethyl-p-toluidine sacrificial donor in 1:1 H₂O:CH₃CN, this Cu(I) sensitizer remains active even after 5 days of visible-light-pumped (位_ex = 452 卤 10 nm) hydrogen evolution catalysis. Deuteration studies illustrate that the hydrogen produced from this composition does indeed originate from aqueous protons.