Salts of N-acylamidophosphates were synthesized and their IR and UV spectra were studied.
By a comparison of the spectra of the salts with the spectra of standard compounds, as well as with a calculation of the vibrations of different models corresponding to possible structures of the anion, it was shown that salts of N-acylamidophosphates possess a mesomer structure with delocalization of the ionic charge (for ionically constructed salts) and electrons of theπ-bonds between the atoms of the acylamidophosphate group, far from the limiting states with respect to distribution of electron density.
Such a mesomer structure of the salts permits us to assume the formation of a conjugated system of bonds in the acylamidophosphate group, which also finds confirmation in an investigation of the UV spectra of the salts and standard compounds.
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Matrosov, E.I., Gilyarov, V.A. & Kabachnik, M.I. Spectra and structure of salts of acylamidophosphates. Russ Chem Bull 16, 1417–1421 (1967). https://doi.org/10.1007/BF00905341
- Ionic Charge
- Standard Compound