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Dinuclear Copper(II) Complexes with Distant Metal Centers: Weaker Donor Groups Increase Catecholase Activity
Author(s) -
Zerón Paulino,
Westphal Michael,
Comba Peter,
FloresÁlamo Marcos,
Stueckl A. Claudia,
LealCervantes Carmen,
UgaldeSaldívar Víctor M.,
Gasque Laura
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201600967
Subject(s) - chemistry , electron paramagnetic resonance , copper , crystallography , cyclic voltammetry , metal , dipole , transition metal , spectral line , catalysis , inorganic chemistry , stereochemistry , electrochemistry , nuclear magnetic resonance , organic chemistry , electrode , physics , astronomy
Two dinuclear complexes with Cu ··· Cu distances above 7 Å were characterized by X‐ray diffraction, EPR spectroscopy, solution speciation, and cyclic voltammetry. Both complexes display EPR spectra typical of dipole–dipole‐coupled dicopper(II) complexes. The two complexes presented herein are part of a series of dinuclear complexes with catecholase activity, and they exhibit the highest catalytic efficiencies of the series. This is associated with the weaker donor character of the ligands.