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Copper‐Based Photosensitisers in Water Reduction: A More Efficient In Situ Formed System and Improved Mechanistic Understanding
Author(s) -
Lennox Alastair J. J.,
Fischer Steffen,
Jurrat Mark,
Luo ShuPing,
Rockstroh Nils,
Junge Henrik,
Ludwig Ralf,
Beller Matthias
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201503812
Subject(s) - in situ , catalysis , ligand (biochemistry) , dimer , copper , chemistry , homogeneous , combinatorial chemistry , metal , reduction (mathematics) , chemical engineering , photochemistry , materials science , organic chemistry , biochemistry , physics , receptor , geometry , mathematics , engineering , thermodynamics
The reduction of water has been achieved through a non‐noble‐metal‐based homogeneous catalyst system that is formed in situ. Optimisation of the ligand quantities increased catalyst turnover numbers compared to preformed complexes. Mechanistic studies confirm a heteroleptic Cu complex as the active photosensitiser (PS) and an in situ formed Fe–phosphido dimer complex as the water reduction catalyst. The in situ method has been used to screen a range of ligands for the active PS, which has led to the identification a number of structural features important to longevity and performance.