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Abstract : |
Ligand scrambling reactions in some cyano(selenone)gold(I) complexes, [> C = Se-Au-CN] to form [(> C = Se)(2) Au](+) and [Au(CN)(2)](-) species have been studied in DMSO using C-13 and N-15 NMR spectroscopy. As a result of the scrambling reaction, two sharp resonances are observed both for the carbon and nitrogen of CN- in C-13 and N-15 NMR, respectively, corresponding to the two equilibrium components, [> C = Se-Au-CN] and [Au(CN)(2)](-). Equilibrium constants (K-eq) were determined for the scrambling equilibria by integrating the CN resonances in the C-13 NMR recorded at 298 K., |
