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RESEARCH PRODUCT

Photochemistry and Redox Chemistry of an Unsymmetrical Bimetallic Copper(I) Complex

Katja HeinzeChristoph FörsterOliver BackJana Leppin

subject

010405 organic chemistryChemistryIminechemistry.chemical_elementDisproportionation010402 general chemistryPhotochemistry01 natural sciencesRedoxCopper0104 chemical sciencesIonInorganic Chemistrychemistry.chemical_compoundAmine gas treatingCupratePhysical and Theoretical ChemistryBimetallic strip

description

The bimetallic copper(I) complex Cu2L2 (cis-1) is formed with high diasteroselectivity from [Cu(NCCH3)4][BF4] and HL (4-tert-butyl phenyl(pyrrolato-2-yl-methylene)amine) in a kinetically controlled reaction. cis-1 features a rather short Cu···Cu distance of 2.4756(6) A and is weakly emissive at room temperature in solution. Oxidatively triggered disproportionation of cis-1 yields elemental copper and the mononuclear copper(II) complex CuL2 (trans-2). One-electron reduction of trans-2 gives cuprate [2]– with a bent bis(pyrrolato) coordinated copper(I) entity. The imine donor atoms of [2]– can insert an additional copper(I) ion giving exclusively the bimetallic complex cis-1 closing the oxidation–elimination–reduction–insertion cycle.

yearjournalcountryeditionlanguage
2016-09-13Inorganic Chemistry
https://doi.org/10.1021/acs.inorgchem.6b01400