Reactions of cationic rhodium(I) carbonyl compounds with nucleophiles to form alkoxo,carboalkoxy and carboxylato complexes. Part II |
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| Authors: | E. Wynne Evans Mohammed B. H. Howlader Mark T. Atlay |
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| Affiliation: | (1) Department of Science and Chemical Engineering, University of Glamorgan, CF37 1DL Pontypridd, UK;(2) Department of Science Education, The Open University, Walton Hall, MK76AA Milton Keynes, UK |
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| Abstract: | Summary The rhodium(I) carbonyl compounds [Rh(CO)L22] [BF4]. 1/2CH2Clnn2 (L = PPh2 or AsPh3) react with the nucleophiles OMe−, RCOO− (R = Me, Et) under nitrogen to form [Rh(OR)(CO)L2] (1)–(2) and [Rh(OOCR)(CO)L2] (7)–(10), respectively. Addition of [Rh(CO)2(PPh3)2]-[BF 4] to OMe− under nitrogen produces [Rh(COOMe)-(CO) (PPh3)2]-MeOH (3), whilst reactions of [Rh(CO)-(PPh3)2] [BF4]·1/2CH2Cl2 and [Rh(CO)2(PPh3)2] [BF4] with OR- (R = Me, Et or n-Pr) in the presence of CO produce [Rh(COOR)(CO)2(PPh3)2] (4)–(6). The products have been characterised by i.r., 1H, 31P, 13Cn.m.r. spectroscopy and elemental analysis. |
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