In:
Canadian Journal of Chemistry, Canadian Science Publishing, Vol. 60, No. 8 ( 1982-04-15), p. 1044-1047
Abstract:
The arene carbonyl rhodium complexes, [Rh(C 6 Me 6 )(CO) 2 ]PF 6 and [Rh(C 6 Me 6 )(CO)PPh 3 ]PF 6 , have been prepared by treating the dimeric complexes, [RhCl(CO) 2 ] 2 and [RhCl(CO)PPh 3 ] 2 , with AgPF 6 in the presence of hexamethylbenzene. The reaction of [Rh(C 6 Me 6 )(CO) 2 ]PF 6 with tetrafluorobenzobarrelene affords [Rh(C 6 Me 6 )(TFB)]PF 6 . On the other hand, the reaction of [Rh(arene)(CO) 2 ]PF 6 with a stoichiometric amount of triphenylphosphine gives [Rh(arene)(CO)PPh 3 ]PF 6 (arene = C 6 Me 6 or C 6 H 3 Me 3 ), whereas with excess of this ligand [Rh(CO)(PPh 3 ) 3 ]PF 6 is formed. The related [Rh(C 6 Me 6 )(CO)P(p-MeC 6 H 4 ) 3 ]PF 6 derivative has also been prepared.The reactivity of both hexamethylbenzene carbonyl rhodium complexes has been examined. The addition of bipyridine to solutions of [Rh(C 6 Me 6 )(CO)L]PF 6 (L = CO or PPh 3 ) causes the immediate displacement of the coordinated hexamethylbenzene. Their reactions with the nucleophiles, acetylacetonate, tropolonate, or pyrazolate in the presence of triethylamine afford neutral derivatives of the type [RhA(CO)L] x (L = CO or PPh 3 ; A = acac or trop, x = 1; A = pz, x = 2).
Type of Medium:
Online Resource
ISSN:
0008-4042
,
1480-3291
Language:
English
Publisher:
Canadian Science Publishing
Publication Date:
1982
detail.hit.zdb_id:
1482256-8
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