Complexes acetyleniques de titane(II). Reactivite vis-a-vis de l'hydrogene moleculaire: Une nouvelle approche du titanocene |
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| Authors: | Bernard Demerseman Pascale Le Coupanec Pierre H. Dixneuf |
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| Affiliation: | Laboratoire de Chimie de Coordination Organique, Université de Rennes, 35042 Rennes Cedex France |
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| 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. |
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