Home
→
Browsing by Author

Browsing by Author "Klimovitskii A."

Now showing items 1-20 of 29

"Additive" cooperativity of hydrogen bonds in complexes of catechol with proton acceptors in the gas phase: FTIR spectroscopy and quantum chemical calculations

Varfolomeev M.; Klimovitskii A.; Abaidullina D.; Madzhidov T.; Solomonov B. (2012)

Experimental study of hydrogen bond cooperativity in hetero-complexes in the gas phase was carried out by IR-spectroscopy method. Stretching vibration frequencies of OH groups in phenol and catechol molecules as well as ...
Application of high resolution NMR (<sup>1</sup>H and <sup>13</sup>C) and FTIR spectroscopy for characterization of light and heavy crude oils

Rakhmatullin I.; Efimov S.; Tyurin V.; Al-Muntaser A.; Klimovitskii A.; Varfolomeev M.; Klochkov V. (2018)

© 2018 Elsevier B.V. High-resolution nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy experiments were applied to obtain detailed information on the hydrocarbon chemistry of three light ...
Calorimetric determination of hydrogen-bonding enthalpy for neat aliphatic alcohols

Solomonov B.; Novikov V.; Varfolomeev M.; Klimovitskii A. (2005)

Hydrogen bonding in pure aliphatic alcohols is investigated using a novel calorimetric approach. Average enthalpies of hydrogen bonding were determined for methanol, ethanol, propan-1-ol, propan-2-ol, butan-1-ol, hexan-1-ol ...
CARS in conformational analysis. Polarization CARS spectra of chlorocyclohexane

Fishman A.; Klimovitskii A.; Skvortsov A. (1997)

Polarization CARS (PCARS) spectroscopy was employed to study the Raman spectra of conformationally heterogeneous media. As an example, the Raman and PCARS spectra of chlorocyclohexane were investigated in the range 970-1020 ...
Conformational analysis of 2-aminophenyl-, 2-aminobenzyl-, and 2-nitrobenzyl(diphenyl)phosphine oxides

Vereshchagina Y.; Alimova A.; Chachkov D.; Ishmaeva E.; Artyushin O.; Sharova E.; Klimovitskii A.; Khanafieva R. (2014)

The polarity and conformations of 2-aminophenyl-, 2-aminobenzyl-, and 2-nitrobenzyl(diphenyl)-phosphine oxides were studied by the dipole moment method, IR spectroscopy, and quantum chemical calculations. 2-Aminophenyl- ...
Conformational isomerism in 3,5,8-trioxabicyclo[5.1.0]octane and its diastereomeric 4-methyl derivatives. A combined IR, X-ray and ab initio study

Klimovitskii A.; Zvereva E.; Chmutova G.; Dobrynin A.; Fedorenko V.; Shtyrlin Y.; Litvinov I.; Bulygina T.; Klimovitskii E. (2007)

IR spectroscopy and ab initio calculations have been applied to the title compounds. Bicyclic acetals were found to exist as mixture of chair and twist-boat conformations, a parent epoxide being in ternary equilibrium. ...
EPR as a complementary tool for the analysis of low-temperature oxidation reactions of crude oils

Mehrabi-Kalajahi S.; Varfolomeev M.; Yuan C.; Emelianov D.; Khayarov K.; Klimovitskii A.; Rodionov A.; Orlinskii S.; Gafurov M.; Afanasiev I.; Fedorchenko G.; Lubnina E. (2018)

© 2018 Elsevier B.V. Air injection is a promising method for enhanced oil recovery (EOR) in both conventional and unconventional oil sources. It is widely accepted that oxidation reactions between oil and injected air ...
Estimation of van der waals interactions between solute and solvent molecules from IR spectra

Solomonov B.; Varfolomeev M.; Klimovitskii A.; Novikov V. (2005)

The influence of medium on methanol stretching OH-vibration shifts was studied in several proton acceptor solvents. A new solvent parameter that well described the influence of the medium on frequency shifts was suggested. ...
Extraordinary behavior of β-hydroxy sulfoxides and sulfone of pinane series

Nikitina L.; Lodochnikova O.; Startseva V.; Bodrov A.; Artemova N.; Klimovitskii A.; Klochkov V. (2017)

© 2017 Taylor & Francis Group, LLC.The “racemic compound-like” behavior, low-temperature conformational rearrangement and “crystallization-induced diastereomerization” of β-hydroxysulfoxides and sulfone of pinane series ...
Formation of microspherical particles of albumin with model drug using spray drying process

Boldyrev A.; Ziganshin M.; Mukhametzyanov T.; Klimovitskii A.; Lyadov N.; Gerasimov A. (2019)

© 2019, AMG Transcend Association. All rights reserved. Spray drying method enables to produce microspherical particles with narrow size distribution. Production of such microparticles is relevant for the development of ...
FTIR – spectroscopy of intermolecular interactions of pyrrole in solutions: The influence of media and cooperativity of hydrogen bonds

Rakipov I.; Petrov A.; Akhmadiyarov A.; Khachatrian A.; Klimovitskii A.; Varfolomeev M.; Solomonov B. (2019)

© 2018 Elsevier B.V. FTIR spectral analysis of solvation effects on the absorption frequencies of N–H stretching vibrations of pyrrole as well as its complexes with proton acceptors (B) was carried out. The comparative ...
Lysozyme-Based Composite Drug Preparations for Inhalation Administration

Boldyrev A.; Ziganshin M.; Osipov A.; Mukhametzyanov T.; Lyadov N.; Klimovitskii A.; Gerasimov A. (2019)

© 2018, Springer Science+Business Media, LLC, part of Springer Nature. Inhalation delivery is a promising route for drug administration. The particles of drug aerosol must have a diameter between 1 and 3 μm. The use of ...
New thermochemical parameter for describing solvent effects on IR stretching vibration frequencies. Communication 1. Assessment of van der Waals interactions

Solomonov B.; Varfolomeev M.; Novikov V.; Klimovitskii A. (2006)

Solvent effects on O{single bond}H stretching vibrations in several complexes with hydrogen bonding have been investigated by FTIR spectroscopy. To assess the influence of van der Waals (vdW) interactions on frequency ...
New thermochemical parameter for describing solvent effects on IR stretching vibration frequencies. Communication 2. Assessment of cooperativity effects

Solomonov B.; Varfolomeev M.; Novikov V.; Klimovitskii A. (2006)

Solvent effects on O-H stretching vibration frequency of methanol in hydrogen bond complexes with different bases, CH3OH···B, have been investigated by FTIR spectroscopy. Using chloroform as a solvent results in strengthening ...
Raman scattering and quantum confinement in heavily electron-irradiated alkali halides

Shtyrkov E.; Klimovitskii A.; Den Hartog H.; Vainshtein D. (2002)

The Raman scattering and quantum confinement in heavily electron-irradiated alkali halides were discussed. The laser excitation light interacted with both the electronic and vibration systems of the Na colloids. It resulted ...
Role of water in the formation of unusual organogels with: Cyclo (leucyl-leucyl)

Safiullina A.; Ziganshina S.; Lyadov N.; Klimovitskii A.; Ziganshin M.; Gorbatchuk V. (2019)

© 2019 The Royal Society of Chemistry. The key role of water in the formation of cyclo(leucyl-leucyl) organogels was demonstrated. The conditions required for preparation of previously unknown gels with aliphatic hydrocarbons ...
Smart Polymorphism of Thiacalix[4]arene with Long-Chain Amide Containing Substituents

Gataullina K.; Ziganshin M.; Stoikov I.; Klimovitskii A.; Gubaidullin A.; Suwińska K.; Gorbatchuk V. (2017)

© 2017 American Chemical Society.A problem of controlled (smart) formation of polymorphs was solved for a set of tert-butylthiacalix[4]arene derivatives with four N-(2-acetoxyethyl)carbamoylmethoxy substituents at the lower ...
Solvent effect on stretching vibration frequencies of the N-H and O-H groups of diphenylamine and phenol in complexes with various proton acceptors: Cooperative effect

Varfolomeev M.; Abaidullina D.; Klimovitskii A.; Solomonov B. (2007)

Solvent effect on the stretching vibration frequencies of the O-H and N-H groups in complexes of phenol and diphenylamine with bases in aprotic and proton-donor solvents was studied by IR spectroscopy. Linear correlations ...
Structural and spectral characterization of novel non-centrosymmetric 2,4-dintrobenzene derivative

Strel'Nik A.; Garipov M.; Petukhov A.; Shtyrlin N.; Lodochnikova O.; Litvinov I.; Naumov A.; Morozov O.; Klimovitskii A.; Shtyrlin Y. (2014)

A novel organic compound 9-(2,4-dinitrophenyloxy)-3,3,8-trimethyl-1,5- dihydro-[1,3]dioxepino[5,6-c]pyridine (DNPAP) has been synthesized and a nonlinear optical (NLO) crystal has been grown by slow evaporation method. ...
Study of "racemic compound-like" behavior of diastereomeric mixture of pinanyl sulfoxides by x-ray diffraction, ir spectroscopy, and DFT calculations

Startseva V.; Nikitina L.; Lodochnikova O.; Klimovitskii A.; Aref'ev A.; Artemova N.; Bodrov A.; Musin R.; Klimovitskii E. (2014)

The oxidation of a β-hydroxysulfide in the pinane series by use of mchloroperbenzoic acid resulted in the formation of the corresponding β-hydroxysulfoxide as a mixture of two diastereomers in 4:5 ratio. According to ...

Now showing items 1-20 of 29

Search DSpace

Advanced Search

Browse

All of Kazan Federal University Digital Repository

Browsing by Author "Klimovitskii A."

Browsing by Author "Klimovitskii A."

Search DSpace

Browse

All of Kazan Federal University Digital Repository

My Account