Coordination Ambivalence of the Electroactive Bis-chelate Ligand Bis(1-methyl-2-imidazolyl)glyoxal (BIG) in Mononuclear and Dinuclear Complexes with Re(CO)3CL

0181529 - UFCH-W 20020159 RIV GB eng J - Článek v odborném periodiku
Knödler, A. - Wanner, M. - Fiedler, Jan - Kaim, W.
Coordination Ambivalence of the Electroactive Bis-chelate Ligand Bis(1-methyl-2-imidazolyl)glyoxal (BIG) in Mononuclear and Dinuclear Complexes with Re(CO)3CL.
Journal of the Chemical Society. Dalton Transactions. - (2002), s. 3079-3084. ISSN 1472-7773
Grant CEP: GA MŠMT OC D15.10
Výzkumný záměr: CEZ:AV0Z4040901
Klíčová slova: mononuclear and dinuclear complexes * UV-VIS spectroelectrochemically
Kód oboru RIV: CG - Elektrochemie
Impakt faktor: 3.023, rok: 2002

Bis(1-methyl-2-imidazolyl)glyoxal (BIG)is reversibly reduced to an EPR, IR and UV-VIS spectroelectrochemically detectable .alfa.-diketyl radical anion. As a ligand BIG can coordinate through the carbonyl oxygen centres O and O'' and through the imine nitrogen atoms N and N'' of the imidazolyl rings. Spectroscopic, electrochemical and spectroelectrochemical results obtained for the mono- and di-nuclear complexes suggest the .pí.-conjugated structure alternative.
Trvalý link: http://hdl.handle.net/11104/0078085