Zobrazeno 1 - 10
of 150
pro vyhledávání: '"I. Kh. Shakirov"'
Publikováno v:
Russian Chemical Bulletin. 44:1068-1071
The IR and Raman spectra ofS-methyl-N,N-dimethyldithiocarbamate were studied in different phase states. The frequencies and vibration modes of normal vibrations were analyzed, and the erroneous assignments made in some previous works were corrected.
Autor:
L. Kh. Ashrafullina, N. I. Monakhova, I. Kh. Shakirov, R. R. Shagidullin, A. N. Polozov, S. A. Katsyuba
Publikováno v:
Russian Chemical Bulletin. 44:276-279
IR and Raman spectra of liquid di-tert-butylphosphorous acid and its two low-temperature crystalline modifications are studied. It is found that at least three stable conformations of acid molecules can exist in the liquid state.
Publikováno v:
ChemInform. 23
Publikováno v:
ChemInform. 23
Publikováno v:
ChemInform. 26
Publikováno v:
Bulletin of the Russian Academy of Sciences Division of Chemical Science. 41:2158-2161
The steric structure of four 2-hydro-2-oxo(thio)-1,3,2-dioxaphosphorinane (DOP) molecules has been studied by means of Raman and IR spectroscopy. A characteristic feature of these compounds is the presence of a hydrogen atom as a "light" exocyclic su
Publikováno v:
Journal of Molecular Structure. 268:321-334
Raman spectroscopy has been applied to the title compounds; dithiaketals of acetone, methyl-ethylketone, ethylketone, pinacolone, cyclohexanone and fluorenone. A three-component chair⇋boat⇋twist-boat boat conformational equilibrium has been estab
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 40:921-926
2-Phenyl-2-oxo-5,6-benzo-1,3,2-dioxaphosphepine exists in a melt and solutions in polar solvents as a three-component equilibrium of two chair forms (C) with axial and equatorial arrangement of the phenyl group and the twist-boat form (TB) with a pse
Autor:
A. V. Il'yasov, S. G. Gnevashev, V. Kh. Kadyrova, Sh. K. Latypov, R. P. Arshinova, I. Kh. Shakirov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:2507-2512
1H and31P dynamic NMR, vibrational spectroscopy, and consideration of dipole moments have shown that 2-chloro-2-thiono-4,5;7,8-dibenzo(4,4′-dimethyl-6,6′-di-tert-butyl)-1, 3,2-dioxaphosphocene and its 2-ethoxy derivative are conformationally hete
Autor:
A. Kh. Plyamovatyi, A. O. Vizel, I. Kh. Shakirov, L. I. Shchukina, I. I. Vandyukova, R. R. Shagidullin, R. M. Mukhamadeeva
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 39:1971-1974
The drug, dimephosphone, in aqueous media has two most probable conformers. The formation of hydrogen bonds with water and complexes with SnCl4 in acetonitrile involves the phosphoryl oxygen atom. Complexation favors some of the dimephosphone conform