Центральная Научная Библиотека УрО РАН

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   Z 51

    Zelentsov, S. V.
    The Kinetics of Photoreduction of Isomeric Nitroanilines [Текст] / S. V. Zelentsov, I. V. Simdyanov, M. V. Kuznetsov // High Energy Chemistry. - 2005. - Vol. 39, № 5. - С. 309-312. - Библиогр. : с. 312 (17 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The kinetics of photoinduced reduction of isomeric nitroanilines and the effect of ethyl bromide as an intersystem crossing catalyst on the apparent rate constants of degradation of nitroanilines were studied. The presence of the catalyst caused deviation of the degradation kinetics of the nitroanilines from the first-order law in the substrate. The deviation was accounted for by the interaction of generated radical products with the parent nitro compound. The photoreduction of nitroanilines in benzene resulted in its hydroxylation yielding phenol. The presence of ethyl bromide increased the phenol yield.

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   S 98


    Synthesis and investigation of the properties of alfa- (6-methyl- 2-benzothiazolyl)-alfa- phenyl-beta- (2,6-dinitrophenyl)hydrazyl, alfa-(2-methyl-6-benzothiazolyl)-alfa-phenyl-beta- (2,6-dinitrophenyl)-hydrazyl, and the corresponding hydrazines / N. I. Abramova, R. O. Matevosyan, Yu. A. Abramov, V. N. Yakovleva, A. K. Chirkov, L. A. Perelyaeva, V. A. Gubanov, V. I. Koryakov // Khimiya Geterotsiklicheskikh Soedinenii. - 1971. - № 11. - P1484-1490 : il. - Bibliogr. : p. 1490 (4 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ГИДРАЗИНЫ -- ЭЛЕКТРОПРОВОДНОСТЬ -- РАДИКАЛЫ
Аннотация: alfa- (6-methyl- 2-benzothiazolyl)-alfa- phenyl-beta- (2,6-dinitrophenyl)hydrazyl, and alfa-(2-methyl-6-benzothiazolyl)-alfa-phenyl-beta- (2,6-dinitrophenyl)-hydrazyl, and their corresponding hydrazines were synthesized, The properties of the compounds obtained were investigated by IR, UV, and visible spectroscopy. Their complexing ability was studied by an optical method and from their electrical conductivity. The ESR spectra of the radicals were recorded. The limiting currents and reduction potentials of the hydrazines on a dropping mercury electrode were found. The charge and spin densities of the compounds were calculated by means of the Hiickel MO and MacLachlan methods. It was demonstrated that the hydrazines form unstable charge-transfer complexes in benzene-piperidine solutions; the charactristics of these complexes depend on the structure of the RR'N-NH-hydrazine residue

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