IR and UV spectra of complexes of N-vinylazoles with organohalostannanes

Analysis of the absorption bands in the IR and UV spectra of complexes of N-vinylazoles with organohalostannanes shows that coordination occurs only through the pyridine nitrogen atom of the ligand. The greatest shifts in the absorption bands in the IR and UV spectra and changes in their intensities are displayed in complexes of N-vinylazoles with alkyltrichloro- and phenylhalostannanes; this corresponds to the increased electron-acceptor capacity of these organotin compounds.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1676–1681, December, 1973.