期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 23, 期 55, 页码 13607-13611出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201703611
关键词
copper; electron transfer; entatic state; redox active ligands; pi-donor ligands
Fast and efficient electron transfer in blue copper proteins is realized by a structural harmonization between the Cu-I and Cu-II complex pair (entatic state model). Herein, we present now a Cu-I/Cu-II complex pair with redox-active guanidine ligands showing almost perfect match between both redox states. By modifying the ligand electron donor strength, the redox chemistry of the copper complex can be controlled to be either metal-centered or to cross the borderline to ligand-centered. This work is the first systematic study of complexes with redox-active ligands within the concept of the entatic state.
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