Аннотации:
The results of determinations of the configurations and conformations of heterorings containing N, O, Si, P, S, Ge, As, Sn, Se, Sb, and Te atoms by 1H, 13C, 15N, 19F, and 13P NMR spectroscopy are correlated. Publications that are of interest from a methodical point of view are primarily summarized in the review. © 1981 Plenum Publishing Corporation.