Conclusions
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1.
The IR spectra of N-phosphorylimidophosphates and phosphinates were investigated. In substances of this type, the frequencies corresponding to vibrations with the participation of P=N groups lie within the region 1296–1338 cm−1, while those of the P=O groups lie within the region 1210–1253 cm−1.
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2.
An analysis of the spectra of N-phosphorylamidophosphates and phosphinates and their comparison with the spectra of the corresponding N-phosphorylimidophosphates and phosphinates confirms the amide structure of N-phosphorylamidophosphates and phosphinates.
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3.
The phosphoryl group can form strong hydrogen bonds with NH-groups and thereby greatly shift the absorption of the N-H vibrations toward lower frequencies, beyond the region of 3100 cm−1. Thus, in N-phosphorylamidophosphates and phosphinates the N -H vibrations are characterized by absorption in the region of 2700 cm−1.
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The article is published on the basis of a resolution of the Conference of Editors-in-Chief of the Journals of the Academy of Sciences USSR of July 12, 1962, as the dissertation work of E. I. Matrosov.
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1331–1336, August, 1965 Original article submitted January 11, 1965
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Matrosov, E.I., Gilyarov, V.A. & Kabachnik, M.I. On the problem of amidimidol tautomerism of N-phosphorylamidophosphates and phosphinates. Russ Chem Bull 14, 1301–1305 (1965). https://doi.org/10.1007/BF00846182
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DOI: https://doi.org/10.1007/BF00846182