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| Titel: |
Influence of the Metallofragment on the Regioselectivity in the Addition of the Radicals •CCl3 and •But to (η2-C60)Ir H(CO) (PPh3)2, (η2-C60)Ir H(CO)[(+)DIOP], (η2-C60)Os(CO)(PPh3)2(CNBut) and on the Stability of the Spin-adducts |
| Auteur: |
Gasanov, R. G. Tsikalova, M. V. Martynova, E. V. Novikov, Yu N. |
| Verschenen in: |
Fullerenes, nanotubes & carbon nanostructures |
| Paginering: | Jaargang 16 (2008) nr. 5-6 pagina's 314-321 |
| Jaar: |
2008-09 |
| Inhoud: |
In this paper we have present the results of study for electronic influence of the metal fragment on the regioselectivity of addition of •CCl3 (R1 ) and •Bu t (R2 ) radicals to the complexes (η2-C60)IrH(CO)(PPh3)2 (I), (η2-C60)IrH(CO)[(+)DIOP] (II), (η2-C60)Os(CO)(PPh3)2(CNBut) (III) and on the stability of spin-adducts (SA). It was found that the addition of R1 and R2 to I-III unlike methano- or pyrrolidinofullerenes the ESR spectra exhibit signals from some regio-isomers which substantial different by the g-factor. The assignment of the individual signals to definite regio-isomers was made. The rate constants of the addition of radicals R1 and R2 to carbon atoms of individual bonds in I-III were determined using the method of competing reactions. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 30 van 71 gevonden artikelen
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