Reexamination of 1,4-Hydride Exchange within the η⁵-Naphthalenyl Complex [Mn(η⁵-C10H9)(CO)3] Establishes an Exchange Rate Intermediate between Those in the Cyclohexadienyl and Anthracenyl Analogues

Autor:	Veauthier, J. M., Chow, A., Fraenkel, G., Geib, S. J., Cooper, N. J.
Zdroj:	Organometallics; September 2000, Vol. 19 Issue: 19 p3942-3947, 6p
Abstrakt:	Magnetization transfer experiments establish that the η5-naphthalenyl complex [Mn(η5-C10H9)(CO)3] participates in a 1,4-hydride shift reaction that involves exchange of the endo proton with the proton para to this position. Dynamic NMR studies establish that ΔG&thermod; for this exchange is 21.0 kcal/mol at 298 K, intermediate between the previously reported exchange barriers of 34 kcal/mol in the benzene-derived complex [Mn(η5-C6D6H)(CO)3] and 14.6 kcal/mol for the anthracene-derived complex [Mn(η5-C14H11)(CO)3].
Databáze:	Supplemental Index
Externí odkaz:	Zobrazit plný text záznamu