Zobrazeno 1 - 10
of 14
pro vyhledávání: '"V. N. Urazbaev"'
Publikováno v:
Biophysics. 52:282-287
Quantum-chemical (PM3) calculations prove the possibility of hydrogen bonding between all nucleic bases and carboxyls of acidic or hydroxymethyls of neutral sugars, with energy in the former case comparable to that for canonical GC or AT pairing. How
Publikováno v:
Journal of Applied Polymer Science. 91:211-217
Butadiene polymerization in the presence of mixed vanadium–titanium–aluminum catalytic systems containing various organoaluminum compounds (OACs) was investigated. The main factors influencing the activity and stereospecificity of the [VOCl3–Ti
Autor:
R. S. Musavirov, R. M. Makaeva, S. M. Shorin, R. R. Musavirov, S. V. Gvozdik, L. V. Spirikhin, V. N. Urazbaev
Publikováno v:
Russian Journal of General Chemistry. 71:724-728
The stereochemistry of substituted 2-vinyl-2-methyl-1,3-dioxa-2-silacyclohexanes was studied by 1Hand 13C NMR spectroscopy. The configurational and conformational assignment of a mixture of 2-vinyl-2,4-dimethyl-1,3-dioxa-2-silacyclohexane diastereome
Publikováno v:
Kinetics and Catalysis. 42:310-316
Several types of active sites can be formed during the polymerization of dienes in the presence of lanthanide catalytic systems. These sites differ in the nearest environment of a lanthanide atom (the numbers of chlorine and carbon atoms) and in the
Publikováno v:
Russian Chemical Bulletin. 47:1280-1283
The kinetics and mechanism of thermal decomposition of adamantyl-containing organosilicon peroxides in a solution inn-nonane were studied. The relationship between the structure of the peroxide and the rate and mechanism of thermolysis was establishe
Publikováno v:
Journal of Applied Polymer Science. 89:601-603
On the basis of quantum-chemical calculations, it was shown that among six types of active centers (ACs) that can form during the polymerization of butadiene with lanthanide-based catalytic systems, five types (containing electron-accepting chlorine
Publikováno v:
Theoretical and Experimental Chemistry. 27:643-646
On the basis of quantum-chemical calculations of models of active centers, a suggested mechanism of kinetic stereocontrol of the microsctructure in polymerization of butadiene under the influence of the catalytic system NdCl3 · 3TBP-HA1 (i-C4H9)2 ha
Autor:
A. I. Pavlyuchko, Z. M. Sabirov, I. O. Kulago, Boris S. Orlinson, Yu. B. Monakov, O. A. Kuznechikov, V. N. Urazbaev, Ivan A. Novakov
Publikováno v:
Russian Chemical Bulletin. 48:282-284
The reactivity of adamantane-containing diamines in the reactions with dianhydrides of 3,4,3′, 4′-tetracarboxydiphenyl oxide was studied as a function of the parameters of their electronic structures. It was found that the reactivity changes in p
Publikováno v:
Biofizika. 52(3)
Spectrophotometric analysis and dot-hybridization have shown that amylose forms complexes with polypyrimidines (poly dC), while polyuronides form complexes with polypurines (poly dA). In addition, the formation of complexes genomic thymus DNA-hyaluro
Publikováno v:
ChemInform. 35
Reactions of Grignard reagents RMgX (R = Me, Et, Pr, Bu; X = Br, I) with 1,3-dicyanoadamantane (1) were studied. Optimum conditions for the synthesis of monoaddition products of Grignard reagents to compound 1 were established. The first stage of the