13C NMR measurements were performed on [Re3(μ-H)3(CO)10]2- at various temperatures and field strengths. Selective decoupling allowed assignments of the carbonyl resonances. Spin-lattice relaxation time measurements indicated that two mechanisms, scalar coupling and chemical shielding anisotropy, contribute to the relaxation of carbon-13. Variable temperature experiments revealed that more than one mechanism is responsible for the fluxional behaviour.
C-13 NMR INVESTIGATION OF THE PROPERTIES OF THE ANION {[RE3(MU-H)3(CO)10]2- IN SOLUTION} / T. BERINGHELLI, G. D'ALFONSO, H. MOLINARI. - In: JOURNAL OF ORGANOMETALLIC CHEMISTRY. - ISSN 0022-328X. - 295:3(1985), pp. C35-C35-C39. [10.1016/0022-328X(85)80328-4]
C-13 NMR INVESTIGATION OF THE PROPERTIES OF THE ANION {[RE3(MU-H)3(CO)10]2- IN SOLUTION}
T. BeringhelliPrimo
;G. D'AlfonsoSecondo
;
1985
Abstract
13C NMR measurements were performed on [Re3(μ-H)3(CO)10]2- at various temperatures and field strengths. Selective decoupling allowed assignments of the carbonyl resonances. Spin-lattice relaxation time measurements indicated that two mechanisms, scalar coupling and chemical shielding anisotropy, contribute to the relaxation of carbon-13. Variable temperature experiments revealed that more than one mechanism is responsible for the fluxional behaviour.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
