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排序方式: 共有106条查询结果,搜索用时 31 毫秒
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Koridze A. A. Kuklin S. A. Sheloumov A. M. Kondrashov M. V. Dolgushin F. M. Ezernitskaya M. G. Petrovskii P. V. Vorontsov E. V. 《Russian Chemical Bulletin》2003,52(12):2757-2759
Russian Chemical Bulletin - 相似文献
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Mass spectra of 2-aryl-4,6-dioxo-1,3-thiazines were studied and the general fragmentation paths of these compounds determined. Based on mass spectra of compounds with fixed structures, 2-aryl-5,5-dialkyl-4,6-dioxo-1,3-thiazines, 4-alkoxy- and 4-acyloxy-2-aryl-6-oxo-1,3-thiazines, the decomposition paths of the dicarbonyl and hydroxycarbonyl forms were determined. It was concluded on the basis of the obtained data that 2-aryl-4,6-dioxo-1,3-thiazines exist in the gas phase predominantly in the hydroxycarbonyl form.For Communication 63, see [1].Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1409–1412, October, 1987. 相似文献
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Koridze A. A. Kuklin S. A. Petrovskii P. V. Dolgushin F. M. Ezernitskaya M. G. 《Russian Chemical Bulletin》2002,51(2):350-353
The Os3(-H)2(CO)7(-C6H4){3-Ph2PCH2P(C6H4)Ph} complex, which was isolated from the products of thermolysis of Os3(CO)10(-dppm) (dppm is Ph2PCH2PPh2) in toluene, was characterized by X-ray diffraction analysis. Protonation of the resulting complex with trifluoroacetic acid afforded the cationic complex [Os3(-H)3(CO)7(-C6H4){3-Ph2PCH2P(C6H4)Ph}]+. 相似文献
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M. L. Keshtov D. V. Marochkin S. A. Kuklin E. I. Mal’tsev D. A. Lypenko A. A. Koridze A. R. Khokhlov 《Polymer Science Series B》2014,56(2):198-206
New conjugated copolyfluorenes containing covalently bound quinolinolate complexes of iridium in the backbone are synthesized under conditions of the Yamamoto reaction. The structures and properties of the polymers are characterized via NMR spectroscopy, GPC, TMA, and TGA. All copolymers show solubility in common organic solvents and feature good thermal and thermo-oxidative properties. The absorption, luminescence, and electrochemical properties of the polymers are investigated. In thin films, the polymers emit blue light with wavelengths in the range 450–470 nm. The electroluminescence spectra of the copolymers show broad intense bands in the visible region with maxima at 500–525 nm corresponding to various emission colors with the chromaticity coordinates (0.361, 0.437) and (0.247, 0.411). The synthesized iridium-containing copolyfluorenes may be used as electron-hole transport materials in light-emitting diodes. 相似文献
8.
Kim Eklund Dr. Mikhail S. Kuklin Prof. Dr. Florian Kraus Prof. Antti J. Karttunen 《Chemphyschem》2020,21(8):802-808
Solid gold(I) fluoride remains as an unsynthesized and uncharacterized compound. We have performed a search for potential gold(I) fluoride crystal structures using USPEX evolutionary algorithm and dispersion-corrected hybrid density functional methods. Over 4000 AuF crystal structures have been investigated. Behavior of the AuF crystal structures under pressure was studied up to 25 GPa, and we also evaluated the thermodynamic stability of the hypothetical AuF crystal structures with respect to AuF3, AuF5, and Au3F8. Mixed-valence compound Au3[AuF4] with Au atoms in various formal oxidation states emerged as the thermodynamically most stable AuF species. 相似文献
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Kuklin A. I. Ivankov O. I. Rogachev A. V. Soloviov D. V. Islamov A. Kh. Skoi V. V. Kovalev Yu. S. Vlasov A. V. Ryzhykau Yu. L. Soloviev A. G. Kucerka N. Gordeliy V. I. 《Crystallography Reports》2021,66(2):231-241
Crystallography Reports - Neutron diffraction studies on the small-angle neutron spectrometer YuMO (Joint Institute for Nuclear Research, Dubna), based on the IBR-2 pulsed reactor, have been... 相似文献
10.
A. Yu. Cherny E. M. Anitas A. I. Kuklin M. Balasoiu V. A. Osipov 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2010,4(6):903-907
The intensity profile of small-angle neutron sc attering from three-dimensional triadic Cantor and Vicsek fractals is calculated
when the fractal sets are monodisperse and their positions are uncorrelated. It is shown that the scattering intensities present
minima and maxima superimposed on a power-law decay with the exponent coinciding with the fractal dimension of the scatterer.
This is in accordance with the scattering from similar systems like Menger sponge or fractal jacks, which all exhibit the
same behavior. For a finite iteration, the Porod power decay of the intensity is displayed at large values of momenta beyond
the fractal region. 相似文献