Zobrazeno 1 - 10
of 13
pro vyhledávání: '"B. G. Zykov"'
Autor:
A. S. Yavorskii, B. G. Zykov, V. I. Khvostenko, O. G. Khvostenko, S. A. Andronati, I. A. Prokopenko
Publikováno v:
Russian Chemical Bulletin. 42:1517-1521
Photoelectron (PE) spectra of 20 biologically active molecules of 1,4-benzodiazepine derivatives have been measured. The spectra in the range of low ionization energies (IE) were interpreted by comparison of MNDO quantum-chemical calculation data wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fefed57931b1df51e8e2c162c84546e7
https://doi.org/10.1007/bf00699186
https://doi.org/10.1007/bf00699186
Autor:
Z. N. Saraeva, O. A. Ponomarev, Abdrakhmanov Ildus B, Tolstikov Genrikh A, N. G. Nigmatullin, B. G. Zykov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 40:552-556
Using the LCAO MO method in the MNDO approximation, we have compared the concerted [3, 3]-sigmatropic and stepwise mechanisms for the acid-catalyzed Claisen amino rearrangement. The latter is preferred.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59c9f55a6e31ca34d569765b2fe71909
https://doi.org/10.1007/bf00957994
https://doi.org/10.1007/bf00957994
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:1603-1610
We have obtained for the first time the photoelectron spectra (PES) of 20 diamagnetic and paramagnetic derivatives of imidazole. On the basis of calculations in the MNDO approximation, analysis of the vibrational structure, and comparisons in a serie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f84d5be1c25b3326ab8f4a4f32158209
https://doi.org/10.1007/bf00961486
https://doi.org/10.1007/bf00961486
Publikováno v:
Scopus-Elsevier
By means of negative ion mass spectrometry (resonant electron capture spectra) the interaction of electrons (0–15 eV) with molecules of phthalide and its substitutes has been studied. These molecules model monomer links of polymers in which phenome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec2a0a2de1c5b733405df6a379315a81
https://doi.org/10.1016/s0379-6779(96)04238-5
https://doi.org/10.1016/s0379-6779(96)04238-5
Autor:
V. A. Dokichev, Oleg M. Nefedov, Ravil I. Khusnutdinov, Tolstikov Genrikh A, Usein M. Dzhemilev, S. R. Rafikov, B. G. Zykov, A. Sh. Sultanov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 31:795-799
1. Dimerization and codimerization of 2- and 7-substituted norbornadienes in the presence of low-valent iron complexes gives new mono- and 5(6), 11-disubstituted exo-trans-exopentacyclo [8.2.1.14,702,90.3,8]tetradeca-5,11-dienes in high yields. 2. Ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91c0084e9df6d247d0bbf4e3180e4765
https://doi.org/10.1007/bf00950022
https://doi.org/10.1007/bf00950022
Autor:
B. G. Zykov, Nail L. Asfandiarov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 32:2069-2072
1. The photoelectron spectra of seven methyl-substituted 1,3-dioxanes have been recorded and identified. 2. Empirical parameters have been found which characterize the magnitude of the inductive effect and the hyperconjugation between theσC-C bonds
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37fe058e45bf64c4ccc4889ffc8f880d
https://doi.org/10.1007/bf00955773
https://doi.org/10.1007/bf00955773
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 30:2252-2255
Conformational analysis and determination of the most probable conformations of the linear acetals have been carried out by combining photoelectron spectroscopy with mass spectrometry of the negative ions resulting from dissociative electron capture.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc936a206b02218be511f04eb107b4a2
https://doi.org/10.1007/bf00963681
https://doi.org/10.1007/bf00963681
Autor:
B. G. Zykov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 35:2035-2039
1. A scheme for the evaluation of the pπ-dπ conjugation based on the comparison of data from photoelectron spectroscopy and the results of quantum-chemical calculations in the framework of Koopman's theorem has been proposed, and evaluations of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01a23450e2c4f5dc8fe736c08755bf4f
https://doi.org/10.1007/bf00957518
https://doi.org/10.1007/bf00957518
Autor:
V. I. Khvostenko, O. G. Khvostenko, Nail L. Asfandiarov, S. A. Andronati, V. A. Mazunov, B. G. Zykov, T. N. Voronina, G. S. Lomakii, L. N. Yakubovskaya, A. S. Yavorskii
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 36:1175-1180
1. E- and Z-conformations of 1,2-dehydro-3H-1,4-benzodiazepin-2-ones are realized in the gas phase and in solution as the result of the inversion of the seven-membered ring. 2. The Z-conformers possess weak physiological activities or none at all. 3.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da162c6739bdb53020aa2827805bd9dc
https://doi.org/10.1007/bf00956656
https://doi.org/10.1007/bf00956656
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 30:1006-1013
1. We observe a substantial reduction in the p-π conjugation of the S atom with the aromatic system on going from phenyl to pentafluorophenyl derivatives of divalent sulfur. 2. The first ionization potential of pentafluorophenyl derivatives of dival
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d660b3ac7534ec993b371cd4143e006a
https://doi.org/10.1007/bf00950282
https://doi.org/10.1007/bf00950282