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排序方式: 共有101条查询结果,搜索用时 15 毫秒
1.
V. A. Zayats A. N. Nikolaevskii T. A. Filippenko O. P. Kniga G. A. Tikhonova 《Russian Journal of Applied Chemistry》2006,79(10):1651-1654
Specific features of the initiated oxidation of polyethylene and its low-molecular-weight analogue tridecane, associated with the occurrence of the process in the short-chain mode, were studied. 相似文献
2.
The problem of sand production (dilatant-plastic reservoir fragmentation) in the process of pumping-out fluid through an uncased borehole is considered. Taking the dilatant change in reservoir porosity into account makes it possible to find a relation between the fluid and solid mass flow rates. There is no steady-state solution if the elasto-plastic boundary does not coincide with the supply contour. In this case a self-similar problem of well start-up with a constant production rate is considered. 相似文献
3.
Khizhan E. I. Filippenko T. A. Nikolaevskii A. N. 《Russian Journal of Applied Chemistry》2004,77(3):423-426
The kinetics and mechanism of reaction of arylhydrazones with molecular oxygen were studied by gas volumetry. The reaction rate was studied in relation to the structure of arylhydrazone and kind of the solvent. The inhibiting power of the compounds toward initiated oxidation of ethylbenzene was evaluated, and the most effective compounds were found, judging from the ratio of the rate constants of the reactions with molecular oxygen and with peroxy radicals arising in the course of ethylbenzene oxidation. 相似文献
4.
Dmitriy S. Yambulatov Stanislav A. Nikolaevskii Mikhail A. Kiskin Kirill V. Kholin Mikhail N. Khrizanforov Yulia G. Budnikova Konstantin A. Babeshkin Nikolay N. Efimov Alexander S. Goloveshkin Vladimir K. Imshennik Yurii V. Maksimov Evgeny M. Kadilenko Nina P. Gritsan Igor L. Eremenko 《Molecules (Basel, Switzerland)》2021,26(10)
The reaction of the redox active 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene (dpp-BIAN) and iron(II) iodide in acetonitrile led to a new complex [(dpp-BIAN)FeIII2] (1). Molecular structure of 1 was determined by the single crystal X-ray diffraction analysis. The spin state of the iron cation in complex 1 at room temperature and the magnetic behavior of 1 in the temperature range of 2–300 K were studied using Mossbauer spectroscopy and magnetic susceptibility measurements, respectively. The neutral character of dpp-BIAN in 1 was confirmed by IR and UV spectroscopy. The electrochemistry of 1 was studied in solution and solid state using cyclic voltammetry. The generation of the radical anion form of the dpp-BIAN ligand upon reduction of 1 in a CH2Cl2 solution was monitored by EPR spectroscopy. 相似文献
5.
A.?S.?BurlovEmail author S.?A.?Mashchenko V.?G.?Vlasenko S.?A.?Nikolaevskii M.?A.?Kiskin Ya.?V.?Zubavichus A.?I.?Uraev D.?A.?Garnovskii E.?V.?Korshunova S.?I.?Levchenkov 《Russian Journal of General Chemistry》2018,88(2):262-270
Novel Cu(II), Co(II), Ni(II), and Zn(II) complexes of 5-methyl-2-phenyl-4-[(4-phenylazo)anilinemethylylidene]- 2,4-dihydro-3H-pyrazole-3-thione and 5-methyl-4-[4-methyl-2-(4-methylphenylazo)anilinemethylylidene]- 2-phenyl-2,4-dihydro-3H-pyrazole-3-thione, i.e. ligands containing the phenylazo group in the ortho and para positions of the aniline fragment, were synthesized by the chemical and electrochemical methods. The complexes and ligands were characterized by IR, 1H NMR, X-ray absorption spectroscopy and magnetochemistry. The azo group of the ligands is not involved in coordination to the metal. 相似文献
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8.
A. S. Burlov A. I. Uraev V. N. Ikorskii S. A. Nikolaevskii Yu. V. Koshchienko I. S. Vasil’chenko D. A. Garnovskii V. G. Vlasenko Ya. V. Zubavichus L. N. Divaeva G. S. Borodkin A. D. Garnovskii 《Russian Journal of General Chemistry》2008,78(6):1230-1235
Copper chelates with tridentate ligands containing pyridine or pyrazole ring at the azomethine or azo fragment were synthesized by chemical electrochemical methods, and their structure was characterized by the EXAFS spectra. Thermal magnetochemical analysis of the complexes revealed antiferromagnetic exchange interaction in all complexes. The exchange interaction parameter of the complex containing an N-tosylamino group in the ortho position with respect to the azomethine group is much lesser than that of the corresponding complex having an oxygen atom in the same position. The copper chelate derived from azopyrazole ligand shows low-temperature ferromagnetic phase transition. 相似文献
9.
Zorina-Tikhonova E. N. Yambulatov D. S. Kiskin M. A. Bazhina E. S. Nikolaevskii S. A. Gogoleva N. V. Lutsenko I. A. Sidorov A. A. Eremenko I. L. 《Russian Journal of Coordination Chemistry》2020,46(2):75-80
Russian Journal of Coordination Chemistry - Data on the synthesis and study of the crystal structure of [Li10(Piv)10(MeCN)2]n (I) and [Li6(Piv)6(MeCN)2]n (II) are presented. According to X-ray... 相似文献
10.