排序方式: 共有12条查询结果,搜索用时 15 毫秒
1.
Romanenko G. V. Letyagin G. A. Maryunina K. Yu. Bogomyakov A. S. Nishihara S. Inoue K. Ovcharenko V. I. 《Russian Chemical Bulletin》2020,69(8):1530-1536
Russian Chemical Bulletin - The study is concerned with structural rearrangements in the crystals of heterospin complexes Cu(hfac)2 with nitroxide radicals LR (hfac is hexafluoroacetylacetonate, LR... 相似文献
2.
N. V. Grevtsev V. D. Zolotukhin Yu. M. Kashurnikov V. A. Letyagin 《Journal of Applied Mechanics and Technical Physics》1974,15(2):215-219
Conductor damage has been examined when the current is switched off at various stages in electrical explosion. If the switching is fairly rapid, kink instability growth is accompanied by formation of vapor bubbles at the kinks within the volume of the liquid metal. Later switching results in vapor bubbles uniformly distributed along the conductor. Cumulative ejection occurs under certain conditions. A qualitative interpretation is given. 相似文献
3.
S. V. Fokin G. A. Letyagin G. V. Romanenko A. S. Bogomyakov M. V. Petrova V. A. Morozov V. I. Ovcharenko 《Russian Chemical Bulletin》2018,67(1):61-70
Alkali metals form mutinuclear compounds with redox-active singly and doubly reduced derivatives of sterically of hindered о-benzoquinones. Complexes [Na6(Cat)3(THF)7]?4THF, [Na5(Cat)2(SQ)(THF)5], [Na4(SQ)4(THF)4]?THF?C6H14, [Na4(3,5-SQ)4(THF)4], [K4(SQ)4(THF)4]?4THF and [Li3(SQ)3(THF)3]?THF (Cat is catecholate, SQ is semiquinonate) possessing high sensitivity to atmospheric oxygen were synthesized and their structures were determined. Magnetochemical measurements and quantum chemical calculations revealed that variation of the alkali metal and/or change in the structure of the polymetallic core significantly affect the energy of exchange interaction between the unpaired electrons of the paramagnetic ligands framing the polynuclear metal core formed by s-elements. 相似文献
4.
O. V. Kuznetsova E. Yu. Fursova G. A. Letyagin G. V. Romanenko V. I. Ovcharenko 《Russian Chemical Bulletin》2018,67(7):1202-1205
Hydrolysis of [M4(hfac)4(MeO)4(MeOH)4] (М = Сo, Ni and hfac is hexafluoroacetylaceton ate) is a convenient way of obtaining polynuclear complexes [Ni7(hfac)6(OH)8(H2O)6]?2H2O, [Co12(hfac)10(OH)14(H2O)8]?2H2O?2MePh, [Co12(hfac)10(OH)14(H2O)4(Me2CO)4]?3PhMe, and [Co12(hfac)10(OH)14(H2O)6(Me2CO)2]?2H2O?2Me2CO, whose structures were confirmed by X-ray analysis. 相似文献
5.
G.?V.?RomanenkoEmail author E.?Yu.?Fursova G.?A.?Letyagin V.?I.?Ovcharenko 《Journal of Structural Chemistry》2018,59(2):384-387
A mixed ligand complex of Ni(II) with 3-imidazoline nitroxide and iso-propanol [NiL2(i-C3H7OH)2] is sensitive to atmospheric moisture. It is determined that at a high humidity, the air contacts with the mother solution of the compound in iso-propanol with the precipitated [NiL2(i-C3H7OH)2] crystals leads to their spontaneous transformation into [NiL2(H2O)]·i-C3H7OH crystals whose structure is described in the present paper. 相似文献
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N. V. Grevtsev V. D. Zolotukhin Yu. M. Kashurnikov V. A. Letyagin 《Journal of Applied Mechanics and Technical Physics》1974,15(1):132-133
In the transient mode of the electrical explosion of a copper wire a redistribution of the explosion products takes place during the escape of the particles. This observation is confirmed by high-speed optical photographs and also by reference to the appearance of the deposited film. 相似文献
8.
V. D. Selemir A. E. Dubinov B. G. Ptitsyn A. A. Evseenko I. A. Efimova V. A. Letyagin R. K. Nurgaliev N. V. Stepanov K. S. Shilin A. V. Yachnyi 《Technical Physics》2004,49(5):642-646
A high-power microwave oscillator (vircator) is built around an ironless induction linac. The feature of this device is ballistic
focusing of an electron beam in a diode-type system with a concentric spherical cathode and anode. The possibility of the
vircator to generate high-power microwave pulses is demonstrated. 相似文献
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Romanenko G. V. Fursova E. Yu. Letyagin G. A. Tolstikov S. E. Ovcharenko V. I. 《Journal of Structural Chemistry》2022,63(4):534-543
Journal of Structural Chemistry - The X-ray diffraction analysis of products of the interaction between hexanuclear manganese pivalate [Mn6O2Piv10(THF)4] and 1,3-di(4′-pyridyl)triazene (LH)... 相似文献