Zobrazeno 1 - 10
of 48
pro vyhledávání: '"N. S. Golubev"'
Autor:
Gleb S. Denisov, Sergei N. Smirnov, Ilja G. Shenderovich, N. S. Golubev, Peter M. Tolstoy, Sven Macholl
Publikováno v:
Zeitschrift für Physikalische Chemie. 222:1225-1245
Low-temperature (193 K) 1H, 13C and 15N NMR spectra of blue- and red-shifting H-bonded complexes formed by fluoroform with various proton acceptors were measured. Experimental NMR parameters were plotted versus the ab initio calculated H-bond strengt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbe687cef194d2c7b6f6c094f9757c5a
https://doi.org/10.1524/zpch.2008.5385
https://doi.org/10.1524/zpch.2008.5385
Publikováno v:
Journal of Molecular Structure. :70-76
The results of experimental studies and theoretical calculations of vibrational frequencies and structure of H-bonded associates of N,N- diphenylformamidine and its complexes with carboxylic acids and hydrogen chloride in solution are discussed. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6552535f736be47089b7dfc6a68a9139
https://doi.org/10.1016/j.molstruc.2007.02.041
https://doi.org/10.1016/j.molstruc.2007.02.041
Publikováno v:
Russian Journal of General Chemistry. 76:1183-1190
A nonadiabatic correction to the H/D isotope effect on the constant of electronic magnetic shielding of a nucleus was estimated within the framework of the first-order perturbation theory. The procedure consists in the ab initio calculation of freque
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26a147476f247dfbcce0383f39f89ba7
https://doi.org/10.1134/s1070363206080019
https://doi.org/10.1134/s1070363206080019
Publikováno v:
Russian Journal of General Chemistry. 76:915-924
The NMR spectra of solutions containing partially deuterated anhydrous hypophosphorous acid (H2POOH) and its complexes with organic bases as proton acceptors were obtained in CD2Cl2 in the temperature range 183–253 K. Under these conditions, the st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cad48b1c5adb6610c57adc534f67390
https://doi.org/10.1134/s1070363206060119
https://doi.org/10.1134/s1070363206060119
Publikováno v:
Высшее образование в России, Vol 0, Iss 3, Pp 155-158 (2022)
New theoretical and practical information concerning applying of ICT and multimedia technologies while teaching the course of analytical chemistry, is given in this article.
Externí odkaz:
https://doaj.org/article/b8d6a9875cb142e684800a35e5a51f07
Publikováno v:
Russian Journal of General Chemistry. 75:1821-1829
3,5-Dimethylpyrazole and halogen-containing carboxylic acids in solution give rise to equilibrium between the free molecules and 1 : 1 and 1 : 2 H-complexes. These complexes either have a ion pair-like structure with two equivalent hydrogen bonds O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::264fa2e16ab41eedcca21e12804bb900
https://doi.org/10.1007/s11176-005-0518-1
https://doi.org/10.1007/s11176-005-0518-1
Autor:
Dimitri N. Shchepkin, Ilja G. Shenderovich, Peter M. Tolstoy, Gleb S. Denisov, Sona M. Melikova, N. S. Golubev
Publikováno v:
Zeitschrift für Physikalische Chemie. 217:1549-1564
Using ab initio calculations of 1H, 19F magnetic shielding tensors of hydrogen difluoride ion as the functions of three coordinates of symmetry, an attempt is made to estimate the contributions of different vibrational isotope effects to H/D NMR isot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47069cc420ae38f9eff2eb69ec659d76
https://doi.org/10.1524/zpch.217.12.1549.20471
https://doi.org/10.1524/zpch.217.12.1549.20471
Autor:
Lucjan Sobczyk, Hans-Heinrich Limbach, Sonya M. Melikova, Maria Rospenk, Parwin Schah-Mohammedi, N. S. Golubev
Publikováno v:
ResearcherID
Using low-temperature UV, 1H and 15N NMR spectroscopy, we studied the easily polarizable O—H··· NOδ−···H··· Nδ+O−··· H—N+ hydrogen bond of the labeled Mannich base[15N] 2-(N,N-diethylaminomethyl)-3,4,6-trichlorophenol (Cl3MB) di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d8bbcafb89bb551c8d228814d3b9744
https://doi.org/10.1002/mrc.943
https://doi.org/10.1002/mrc.943
Publikováno v:
Journal of Molecular Structure. :297-301
The opportunity of the formation of molecular complexes with bifurcated hydrogen bonds (H-bonds) in liquid phase is discussed. It was shown that, practically in all previous studies, the idea of the bifurcation was used only for the explanation of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b525fd7ab6cec41835614c94529dbfdd
https://doi.org/10.1016/s0022-2860(98)00702-9
https://doi.org/10.1016/s0022-2860(98)00702-9
Autor:
N. S. Golubev, Concha Foces-Foces, Phillipe Lorente, Antonio L. Llamas-Saiz, Hans-Heinrich Limbach
Publikováno v:
Acta Crystallographica Section C Crystal Structure Communications. 55:377-381
The crystal structures of three 1:1 adducts of 2,4,6-trimethylpyridine with benzoic acid, C 8 H 11 N.C 7 H 6 O 2 , (I), 2-nitrobenzoic acid, C 8 H 12 N + .C 7 H 4 NO 4 - , (II), and 3,5-dinitrobenzoic acid, C 8 H 12 N + .C 7 H 3 N 2 O 6 - , (III), de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d561f603a032c13d1d3366f03cc6403
https://doi.org/10.1107/s0108270198013766
https://doi.org/10.1107/s0108270198013766