VT-multinuclear NMR

VT-multinuclear NMR studies have allowed one to establish unequivocally whether the M-coordinated-C02 framework is a rigid structure or not To this end, it is necessary that other nuclei (such as the P-donor atoms of phosphanes) are bonded to the metal centre so that, when the metal favours the coupling, it is possible to observe whether the solid state stmcture is maintained in solution or the framework exhibits some fluxionality. Complex 1 has been extensively investigated and the fluxional behaviour has been well explained by coupling IR and NMR studies [6, 40],... 

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