Reaction of amides of trivalent phosphorus acids with tellurium

Conclusions Amides of tellurophosphorus acids were synthesized for the first time.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, p. 168, January, 1969.     

Some structural problems and the vibration spectra of a series of N-substituted ethylenimines

On a basis of comparison of Raman and IR absorption spectra, as well as measurements of intensities and degrees of depolarization of Raman lines, pulsation (breathing) vibrations of the ethylenimine ring - _sNin a series of N-substituted ethylenimines are identified. Alkyl substituents increase _sNas compared with ethylenimine, probably because of change in the hydridization of the electron clouds of the nitrogen due to steric causes. The high values of _sNfor substituents capable of conjugation effects, is in accord with the hypothesis that the lone electron pair of the nitrogen participates in conjugation. Furthermore, when N enters into the composition of a 3-membered ring, the lone pair exhibits diminished capacity for delocalization. The intensity of the Raman line _sN of N-phenylethylenimine is anomalously high, and the cause of this requires explaining. UV spectra are given.     

Some properties of 4,5-carboalkoxy-(2-diethylamino)-1,3,2-dioxaphospholanes

Conclusions Some 4,5-carboalkoxy-(2-diethylamino)-1,3,2-dioxaphospholanes — derivatives of D-tartaric and racemic tartaric acids, were synthesized and some of their properties were studied.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 1990–1993, September, 1967.The infrared spectra were taken and deciphered by P. P. Shagidyllin, for which the authors wish to thank him.     

Some structural problems and the vibration spectra of a series of N-substituted ethylenimines

On a basis of comparison of Raman and IR absorption spectra, as well as measurements of intensities and degrees of depolarization of Raman lines, pulsation (breathing) vibrations of the ethylenimine ring -υ _sN?in a series of N-substituted ethylenimines are identified. Alkyl substituents increaseυ _sN?as compared with ethylenimine, probably because of change in the hydridization of the electron clouds of the nitrogen due to steric causes. The high values ofυ _sN?for substituents capable of conjugation effects, is in accord with the hypothesis that the lone electron pair of the nitrogen participates in conjugation. Furthermore, when N enters into the composition of a 3-membered ring, the lone pair exhibits diminished capacity for delocalization. The intensity of the Raman lineυ _sN? of N-phenylethylenimine is anomalously high, and the cause of this requires explaining. UV spectra are given.