Synthesis of halogeno, pseudohalogeno, and carboxylatopalladium(IV) complexes by halogen exchange. Crystal structure of azido(2,2’-bipyridyl)benzylpalladium( II), formed on reductive elimination of ethane from Pd(N3)Me2(CH2Ph)(bpy)

2955 22 archive 185 disk0/00/00/29/55 2008-02-04 04:55:35 2008-07-18 10:30:15 2008-07-16 16:46:05 article show allan.canty@utas.edu.au Canty AJ allan.canty@utas.edu.au Traill PR Skelton BW White AH Synthesis of halogeno, pseudohalogeno, and carboxylatopalladium(IV) complexes by halogen exchange. Crystal structure of azido(2,2’-bipyridyl)benzylpalladium( II), formed on reductive elimination of ethane from Pd(N3)Me2(CH2Ph)(bpy) pub 039904 259901 restricted The definitive version is available at http://www.sciencedirect.com The first examples of fluoro, pseudohalogeno, and carboxylatopalladium(IV) complexes have been obtained by the exchange of the bromo ligand in PdBrMe2(CH2Ph)(bpy) (bpy = 2,2’-bipyridyl) on addition of a silver salt, or silver nitrate and the appropriate anion, in acetonitrile. The syntheses have permitted a study of the effect of groups X on the selectivity in reductive elimination of ethane and ethylbenzene from PdXMe2(CH2Ph)(bpy). For X = Br, N3, SCN, or O2CPh, reductive elimination from the unstable palladium(IV) complexes in acetone gives ethane and PdX(CH2Ph)(bpy) only, but these products together with ca. 10% of ethylbenxene and PdXMe(bpy) are formed from the complexes PdXMe2(CH2Ph)(bpy) (X = F, Cl, I, OCN, SeCN, O2CCF3). The binding mode of the ambidentate pseudohalides OCN-, SCN- and SeCN- has not been determined. 1992 published Journal of Organometallic Chemistry 433 1-2 213-222 10.1016/0022-328X(92)80143-L TRUE 0022-328X http://dx.doi.org/10.1016/0022-328X(92)80143-L 3916 4 2955 1 application/pdf en staffonly cc_utas

JOMC1992_2C_213.pdf

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