Zobrazeno 1 - 10
of 21
pro vyhledávání: '"I. O. Shapiro"'
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 38:279-284
1. The energies for the reorganization of the structures of the anionic fragments of toluene (∼0) and cumene (∼ 102.5 kJ/mole) and the activation energies for the ionization of these CH acids (74.0 and 85.7 kJ/mole, respectively) in a solution of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f438b0efb6e392466dc02aea02a7d4f
https://doi.org/10.1007/bf00953614
https://doi.org/10.1007/bf00953614
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 38:270-276
1. The influence of the components of the effect of the structural reorganization of the anionic fragments of monalkylbenzenes and nitroalkanes on the kinetics of their ionization was determined. 2. A model of the mechanism of the elementary act in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67a5a766cea9a18e3aea94fdfa2f2677
https://doi.org/10.1007/bf00953612
https://doi.org/10.1007/bf00953612
Publikováno v:
Theoretical and Experimental Chemistry. 22:425-430
Bronsted relations with anomalous (less than zero) values for the α coefficient were obtained for the ionization reactions of monoalkylpyridines, monoalkylbiphenyls, and monoalkylbenzenes in solutions of the lithium (or potassium) tertbutoxide and d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4923512aa6d88d5f28c03adc5aa2d13a
https://doi.org/10.1007/bf00523820
https://doi.org/10.1007/bf00523820
Publikováno v:
Chemistry of Heterocyclic Compounds. 25:874-878
The heats of formation and the parameters of the geometrical and electron structures of the molecules and carbanions of furan, thiophene, N-methylpyrrole, N-methylimidazole, benzofuran, benzothiophene, N-methylindole, benzene, and naphthalene were ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::040ac2f51afb24be35b137330d2b8b65
https://doi.org/10.1007/bf00479604
https://doi.org/10.1007/bf00479604
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 38:2256-2259
Kinetic acidities of aryl and benzyl CH-bonds for complexes of benzene and its methoxy and alkyl derivatives with tricarbonylchromium are determined in a solution of lithium tert-butoxide in N,N-dimethylacetamide. Complexation of alkyl-aromatic compo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df748cd48e10b6eddc83ecdc6d12f1c7
https://doi.org/10.1007/bf01168064
https://doi.org/10.1007/bf01168064
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 37:283-288
1. According to the data from quantum-chemical calculations, the stability of the nitromethane and toluene molecules in the “orthogonal” and “parallel” conformations is practically the same. The ethylbenzene molecule is more stable in the ort
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81d23c4dcf77f3a4747cf02065ac5f74
https://doi.org/10.1007/bf00957427
https://doi.org/10.1007/bf00957427
Autor:
A I Shatenshtein, I O Shapiro
Publikováno v:
Russian Chemical Reviews. 37:845-854
The problem of the differentiating action of solvents on the relative strength of acids is examined from the point of view of the modern theory of acid–base equilibrium, according to which hydrocarbons and their derivatives behave under appropriate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17a82bccc3b1fe79c656d46b0e8c2477
https://doi.org/10.1070/rc1968v037n11abeh001709
https://doi.org/10.1070/rc1968v037n11abeh001709
Autor:
I. O. Shapiro, A. I. Shatenshtein
Publikováno v:
Theoretical and Experimental Chemistry. 5:37-42
The reasons for the differentiating action of solvents on the relative kinetic acidity of CH-acids (hydrocarbons and their derivatives), determined by measuring the kinetics of the isotopic exchange of hydrogen, have been examined. The effect is asso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a265f788c8deab48cb5b0f674cfb1e7d
https://doi.org/10.1007/bf00525495
https://doi.org/10.1007/bf00525495
Publikováno v:
Chemistry of Heterocyclic Compounds. 2:489-492
Rates of exchange between deuterium in 2D-, 3D-, 2D-3CH3-, and 2D-5CH3 -furan and a solution of potassium tert-butoxide in dimethylsulfoxide are measured. Protophilic deuterium exchange at position 2 in the furan molecule is 600 times faster than tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a57518264fe47c4af3b4db94d242b441
https://doi.org/10.1007/bf00477500
https://doi.org/10.1007/bf00477500
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 38:277-279
The outer-sphere reorganization energies have been calculated for the ionization of toluene (167 kJ/mole) and cumene (146 kJ/mole) in solutions of potassium tert-butoxide in DMSO.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08c68a6f5065ccab04cca5fdcc1bb25c
https://doi.org/10.1007/bf00953613
https://doi.org/10.1007/bf00953613