Extensive isotopic labeling using 2H and 15N shows two or three bands which change frequency and intensity for many aryldiazo-transition metal complexes. This effect is shown to arise from the resonance interaction of v(NN) with weak phenyl vibrational modes. From relative intensities of the respective bands, the unperturbed values of v(NN) are estimated. A new cyclic polyether-benzenediazonium complex has been prepared and is shown to be the first diazo complex in which v(NN) increases upon coordination.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry