Influence of the Metallofragment on the Regioselectivity in the Addition of the Radicals•CCl3and•Butto (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

Autor:	Yu. N. Novikov, M. V. Tsikalova, E. V. Martynova, R. G. Gasanov
Rok vydání:	2008
Předmět:	Chemistry Stereochemistry Radical Organic Chemistry Regioselectivity Medicinal chemistry Atomic and Molecular Physics and Optics Adduct Metal Esr spectra Reaction rate constant visual_art visual_art.visual_art_medium General Materials Science Physical and Theoretical Chemistry Spin (physics)
Zdroj:	Fullerenes, Nanotubes and Carbon Nanostructures. 16:314-321
ISSN:	1536-4046 1536-383X
DOI:	10.1080/15363830802206119
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7c7129250fb917d8a961983a42daf273 https://doi.org/10.1080/15363830802206119 Zobrazit plný text záznamu