A study of the protonation and alkylation oft-butyl isocyanide intrans-[M(CNBu-t 2(Ph2PCH2CH2PPh2)2] (M = Mo or W): Formation of carbyne-type complexes and theirtrans- tocis-isomerization |
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| Authors: | M. Fernanda N. N. Carvalho Cristina M. C. Laranjeira Antónia T. Z. Nobre Armando J. L. Pombeiro Ana C. A. M. Viegas Raymond L. Richards |
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| Affiliation: | (1) Centro de Química Estrutural, Complexe I, Instituto Superior Técnico, Av. Rovisco Pais, 1096 Lisboa Codex, Portugal;(2) AFRC Unit of Nitrogen Fixation, University of Sussex, BN1 9RQ Falmer, Brighton, UK |
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| Abstract: | Summary Treatment of complexestrans-[M(CNBu-t)2(dppe)2][(1) M = Mo or W, dppe = Ph2PCH2CH2PPh2] with protic acid gives a mixture of the aminocarbyne complexestrans- pluscis-[M(CNHBu-t)(CNBu-t)(dppe)2]+ (2) and the hydridocompounds [MH(CNBu-t)2(dppe)2]+ (3), whereas reaction with an alkylating agent (R+) appears to give the dialkylaminocarbyne compounds [M(CNRBu-t)(CNBu-t)(dppe)2]+ (4) also as a mixture of thetrans andcis isomers. |
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