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V. A. Al'fonsov I. A. Litvinov O. N. Kataeva D. A. Pudovik S. A. Katsyuba 《Russian Chemical Bulletin》1995,44(10):1897-1899
X-Ray study of (diethyldithiocarbomoyl)diphenylthiophosphinate was carried out. AZ-conformation of the diethyldithiocarbomoyl ligand, which results in a short nonvalent intramolecular P...S contact (3.315 Å), is realized in the molecule. Steric hindrances in the molecule increase the P-S-C bond angle to 106.39°.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1978–1980, October, 1995.The work was financially supported by the International Science Foundation (Gram RH1 000). 相似文献
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Gerasimova T. P. Shamsieva A. V. Strel’nik I. D. Katsyuba S. A. Musina E. I. Karasik A. A. Sinyashin O. G. 《Russian Chemical Bulletin》2020,69(3):449-457
Russian Chemical Bulletin - The steric and electronic structures of 1,3-diaza-5-phoaphacyclohexane with the pyridyl substituent at the phosphorus atom and a series of model... 相似文献
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Michael A. Pudovik Lyudmila Kibardina Alexey Trifonov Alexey Dobrynin Sergei Katsyuba Alexander Burilov 《Phosphorus, sulfur, and silicon and the related elements》2019,194(1-2):120-126
New O-phosphorylated pyridoxal derivatives have been synthesized through the reaction of azomethines with РV acid chlorides. 2-Chloro-2-thioxo-5,5-dimethyl-1,3,2-dioxaphosphinanes and diethylchlorothiophosphate have been employed as phosphorylating agents. Regardless of the nature of the phosphorylating agent, the reaction is regioselective at phenolic hydroxyl group. The structure of final products is determined by the nature of the substituent at the nitrogen atom. If R is alkyl or cycloalkyl group, the products of the reaction represent phosphorylated pyridoxal imines, whereas phosphorylated furopyridines are formed in the case R is aryl substituent. 相似文献
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Petrov A. V. Zagidullin A. A. Burganov T. I. Shatalova N. I. Katsyuba S. A. Milyukov V. A. 《Russian Chemical Bulletin》2019,68(2):445-448
Russian Chemical Bulletin - A new method for the preparation of 2,3,4,5-tetraphenyl-1-octyl-1-monophosphole was developed. It was shown that the reaction of n-octyl chloride with a mixture of... 相似文献
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S. A. Katsyuba S. V. Izosimova R. R. Shagidullin I. Kh. Shakirov 《Russian Chemical Bulletin》1989,38(11):2337-2340
By solving the inverse spectral problem for the (t-BuO)3Sb molecule, we have obtained force constants for the Sb(OC)3 fragments having the property of transferability. Rotation about the SbO bond weakly affects the frequencies of the skeletal vibrations of (RO)3Sb molecules (R=t-Bu, i-Pr), while rotations of the propyl radicals about the OC bond lead to significant changes in the frequencies. In an equilibrium mixture of conformers of (i-PrO)3Sb molecules, forms must be present with gauche orientation of the methine protons relative to the SbO bonds.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2547–2551, November, 1989. 相似文献
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Elena E. Zvereva Sergey A. Katsyuba Alexander E. Vandyukov Alla V. Chernova Valery I. Kovalenko Svetlana E. Solovieva Igor S. Antipin Alexander I. Konovalov 《Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy》2010,75(2):872-879
It is demonstrated that dissolution of aminothiacalix[4]arene in chloroform results in transformation of 1,3-alternate conformation, adopted in single-crystal and bulk polycrystalline solids, to the pinched-cone form. This conformer is stabilised by the intramolecular hydrogen bonds of two distal amino-groups acting as H-donors with another two amino moieties that appear as H-acceptors. The H-bonds cause quite small (ca. 10–20 cm?1) red shift of the IR bands of the NH2 stretching vibrations, which suggests rather weak NH?N hydrogen bonding. This latter is sufficient to stabilize the pinched-cone conformation in the chloroform solution, but the energy gap between the pinched-cone and other conformations is small, and solid-state intermolecular forces easily overcome it, leading to realisation of the 1,3-alternate conformer. The comparison of the DFT computed and experimental vibrational and NMR spectra demonstrates good quality of present quantum-chemical computations, allows complete interpretation of the spectra and reveals simple IR and NMR spectroscopic markers of the conformers of aminothiacalix[4]arenes. 相似文献
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R. R. Shagidullin N. I. Monakhova L. Kh. Ashrafullina S. A. Katsyuba 《Russian Chemical Bulletin》1989,38(7):1574-1574
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1709–1710, July, 1989. 相似文献