Structure and Molecular Lability of N-(Thio)phosphoryl(thio)amides: XVII. Intramolecular Transformations of N,N'-Bis(thio)phosphoryl(thio)ureas with the Open-Chain Fragment in DMSO Solution

摘要

By means of the ~1H, ~(13)C, and ~(31)P NMR spectroscopy structure and intramolecular transformations of N,N'-bis[diisopropoxythiophosphorylaminothiocarbonyl]-l,7-diaminoheptane in 3-10% DMSO solutions were studied. High lability of molecule with the realization of two conformers (linear and pincer-like) of macromolecule, of the proton imide-imide exchange, and of different tautomeric forms was proved.