Počet záznamů: 1
Electrochemical Behaviour, IR Spectroelectrochemistry and Theoretical Studies of Tetracobalt Carbonyl Cluster Complexes with a Facial Cyclooctatetraene Ligand
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SYSNO ASEP 0181556 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Electrochemical Behaviour, IR Spectroelectrochemistry and Theoretical Studies of Tetracobalt Carbonyl Cluster Complexes with a Facial Cyclooctatetraene Ligand Tvůrce(i) Fiedler, Jan (UFCH-W) RID, ORCID
Nervi, C. (IT)
Osella, D. (IT)
Calhorda, M. J. (PT)
Godinho, S. M. C. (PT)
Merkel, R. (DE)
Wadepohl, H. (DE)Zdroj.dok. Journal of the Chemical Society. Dalton Transactions - ISSN 1472-7773
- (2002), s. 3705-3711Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova spectroelectrochemistry ; electron-transfer reactions Vědní obor RIV CG - Elektrochemie CEP OC D15.10 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z4040901 - UFCH-W Anotace The redox properties of some cluster complexes with a facial cyclooctatetraene (cot) ligand were investigated using electrochemical and IR spectroelectrochemical techniques. Reduction of [Co-4 (CO)(3) (eta(3)-CO)(3) (mu(3)-C8H8)L-2] 1 (L-2 = eta(4) -C8H8), 2 (L-2 = eta(4)-C6H8), and 3 (L-2 = eta(4) -6,6-Ph2C6H4) occurs in CH2Cl2 or THF solution in two consecutive one-electron electrochemically reversible steps. Both one- and two-electron primary reduction products are unstable on a longer timescale; eventually degradation (decapitation) of the tetranuclear clusters takes place, to give the stable anion [Co-3 (CO)(3) (mu-CO)(3) (mu(3)-C8H8)](-) 5. The electronic structure of 1, 2, the octacarbonyl derivative [Co-4 (CO)(5) ( mu(3)-CO)(3) (mu(3)-C8H8)] 4, their monoanions, dianions and 5 was investigated using ab initio DFT MO calculations. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2003
Počet záznamů: 1