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Ufa State Petroleum Technological University - is a technological university in the city of Ufa.In October 1941, Gubkin Russian State University of Oil and Gas was evacuated from Moscow to Ufa. However, in November 1943 the Gubkin University was returned to Moscow.On 4 October 1948, the Ufa Petroleum Institute emerged on the basis of Gubkin Russian State University of Oil and Gas.On 22 November 1993, Ufa Petroleum Institute was renamed to Ufa State Petroleum Technological University. Wikipedia.


Kuznetsov V.V.,Ufa State Petroleum Technological University
Russian Journal of Organic Chemistry | Year: 2014

The review considers the results of computer simulation of conformational transformations of 1,3-dioxanes, 1,3,2-dioxaborinanes, and 1,3-dioxa-2-silacyclohexanes in terms of HF, DFT, and MP2 quantum chemical approximations. The effect of intermolecular association with water and other substrates on the conformational transformations is discussed. © 2014 Pleiades Publishing, Ltd. Source


Kuznetsov V.V.,Ufa State Petroleum Technological University
Russian Journal of General Chemistry | Year: 2016

Relative stability of three molecular forms of diborane in the model single-walled carbon nanotubes has been studied by means of the PBE/3ζ hybrid DFT method. The influence of the force field of the nanotube results in the decrease of the B-B bond length, decrease of the energy difference between the orthogonal and the planar forms, and appearance of high negative charge at the B2H4 molecule. The strengthening of these effects is not related to the length and geometry [(n,n) or (n,0)] of the nanotube, but is determined only by the nanotube diameter. © Pleiades Publishing, Ltd., 2016. Source


Kuznetsov V.V.,Ufa State Petroleum Technological University
Russian Journal of Organic Chemistry | Year: 2013

The investigation of conformation conversions of cis- and trans-isomers of 2,4-dimethyl-5-isopropyl-1,3,2-dioxaborinane using ab initio quantum-chemical approximation HF/6-31G(d) and the hybrid DFT-method PBE/3z showed that the routes of the transformations presuppose an equilibrium between sofa conformers with the different orientation of substituents at the atoms C4 and C5 of the ring that convert into each other through transition states corresponding to the equatorial and axial conformations of the 2,5-twist form. Based on experimental data of 1H NMR spectra and calculated vicinal spin-spin coupling constants the quantitative conformational composition of cis- and trans-isomers was established and also the ΔGo value of the conformation equilibrium was determined. © 2013 Pleiades Publishing, Ltd. Source


Migranov N.G.,Bashkir State University | Kudreyko A.A.,Ufa State Petroleum Technological University
Chinese Physics B | Year: 2015

Helix unwinding in ferroelectric liquid crystals induced by an electric field is theoretically studied on the basis of the continuum theory. By applying a weak electric field tilted to the smectic layers, the contribution of the dielectric interaction energy density to the total free energy density is increased. Approximation methods are used to calculate the free energy for different tilt angles between the electric field and the smectic layers. The obtained results suggest selecting the optimal number of pitches in the film that matches to the minimum of the free energy. © 2015 Chinese Physical Society and IOP Publishing Ltd. Source


Kuznetsov V.V.,Ufa State Petroleum Technological University
Russian Journal of Organic Chemistry | Year: 2016

According to HF and DFT quantum chemical calculations and 1H NMR data, the chair–chair conformational equilibrium of 5-methyltetrahydro-1,3-oxazine shifts toward the conformer with equatorial orientation of the methyl group on C5 and axial orientation of the NH proton. 3,5-Dimethyltetrahydro-1,3-oxazine exists preferentially as chair conformer with equatorial orientation of the 5-methyl group; orientation of the N-methyl group almost does not affect the conformational equilibrium. © 2016, Pleiades Publishing, Ltd. Source

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