Robust cuprous phenanthroline sensitizer for solar hydrogen photocatalysis

Khnayzer, Rony S.; McCusker, Catherine E.; Olaiya, Babatunde S.; Castellano, Felix N.

Robust cuprous phenanthroline sensitizer for solar hydrogen photocatalysis

Khnayzer, Rony S.; McCusker, Catherine E.; Olaiya, Babatunde S.; Castellano, Felix N.

URI: http://hdl.handle.net/10725/6489

URL: http://pubs.acs.org/doi/abs/10.1021/ja407816f

DOI: http://dx.doi.org/10.1021/ja407816f

Date: 2017-11-03

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Abstract:

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 (λex = 452 ± 10 nm) hydrogen evolution catalysis. Deuteration studies illustrate that the hydrogen produced from this composition does indeed originate from aqueous protons.

Citation:

Khnayzer, R. S., McCusker, C. E., Olaiya, B. S., & Castellano, F. N. (2013). Robust cuprous phenanthroline sensitizer for solar hydrogen photocatalysis. Journal of the American Chemical Society, 135(38), 14068-14070.