ESR study of reactivity of the complex (η2-C60)Os(CO)(PPh3)2(CNBut) toward free radicals

Autor: Yu. N. Novikov, E. V. Martynova, R. G. Gasanov, M. V. Tsikalova
Rok vydání: 2008
Předmět:
Zdroj: Russian Chemical Bulletin. 57:309-315
ISSN: 1573-9171
1066-5285
DOI: 10.1007/s11172-008-0048-1
Popis: Addition of the ·P(O)(OPri)2, Me·, Et·, ·But, and Cl3C· radicals to the (ν2-C60)Os(CO)-(PPh3)2(CNBut) complex (1) was studied by ESR spectroscopy. The spectral parameters of the spin-adducts of these radicals with complex 1 were determined. The predominant direction of the attack by the ·P(O)(OPri)2, ·But, and Cl3C· radicals are the cis-1 and cis-2 bonds of the fullerene molecule. The stability of the spin-adducts depends substantially on the nature of the added radical. The addition rate constants of the ·P(O)(OPri)2, ·But, and Cl3C· radicals to complex 1 and the dimerization rate constants for these spin-adducts were determined.
Databáze: OpenAIRE