The reaction of RhCl3·3H2O with (EEE)-1,5,9-cyclododecatriene in alcohols gives a red polymeric solid compound with chlorine bridges, 1, in which the hydrocarbon moiety has been reported to be bonded to the metal via an η3-allylic bond. Re-examination of this reaction has led to the isolation of soluble derivatives obtained by breaking the chlorine bridges with chelating diphosphines and diamines. An X-ray analysis on single crystals of a diphosphino and a diamino derivative, indicates that the cyclo-olefin residue with composition C12H17 has undergone isomerization. The two double bonds not involved in the bonding to the metal are 5,8 rather than 5,9.
Rhodium(III) complexes of (EEE)-1,5,9-cyclododecatriene. Syntheses, structures and absolute configurations of derivatives of catena-poly-[μ-dichloro-(1,2,12-η)-1,5,8 cyclododecatrienylrhodium]
PANDOLFO, LUCIANO;
1995
Abstract
The reaction of RhCl3·3H2O with (EEE)-1,5,9-cyclododecatriene in alcohols gives a red polymeric solid compound with chlorine bridges, 1, in which the hydrocarbon moiety has been reported to be bonded to the metal via an η3-allylic bond. Re-examination of this reaction has led to the isolation of soluble derivatives obtained by breaking the chlorine bridges with chelating diphosphines and diamines. An X-ray analysis on single crystals of a diphosphino and a diamino derivative, indicates that the cyclo-olefin residue with composition C12H17 has undergone isomerization. The two double bonds not involved in the bonding to the metal are 5,8 rather than 5,9.Pubblicazioni consigliate
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