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Semenov V. V. Cherepennikova N. F. Khorshev S. Ya. Mushtina T. G. Lopatin M. A. Domrachev G. A. 《Russian Journal of Coordination Chemistry》2002,28(12):856-863
1-(3"-Amino)propylsilatrane (I) and 1-(3"-acetamido)propylsilatrane (II) react with anhydrous cobalt(II) chloride to give dichlorobis[1-(3"-amino)propylsilatrane]cobalt(II) {Co[NH2CH2CH2CH2Si(OCH2CH2)3N]2Cl2} (III) and dichlorobis[1-(3"-acetamido)propylsilatrane]cobalt(II) {Co[CH3C(O)NHCH2CH2CH2Si(OCH2CH2)3N]2Cl2} (IV). Being unstable, compound IV transforms into an imidic acid derivative. Reactions of silatranes I and II with dicobalt octacarbonyl afford hexakis[1-(3"-aminoamido)propylsilatrane]cobalt(II) bis(tetracarbonylcobaltate) {Co[NH2CH2CH2CH2Si(OCH2CH2)3N]4.8[HC(O)NHCH2CH2CH2Si(OCH2CH2)3N]1.2}[Co(CO)4]2 (V) and hexakis[1-(3"-acetamido)propylsilatrane]cobalt(II) bis(tetracarbonylcobaltate) {Co[CH3C(O)NHCH2CH2CH2Si(OCH2CH2)3N]6}[Co(CO)4]2 (VI), respectively. In acetonitrile, tetracarbonylcobaltate anions of compound VI are oxidized with atmospheric oxygen and moisture to cobalt hydroxocarbonate, giving a carbonate gel (VII). 相似文献
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V. V. Semenov N. F. Cherepennikova A. N. Kornev E. V. Naamova N. P. Makarenko S. Ya. Xhorshev G. A. Domrachev O. A. Bochkova 《Russian Chemical Bulletin》1996,45(10):2431-2437
Oligo(phenylcobaltcarbonylsilane) was prepared from oligo(phenylsilane) and dicobalt octacarbonyl. The reaction proceeds with elimination of H2 and CO and insertion of cobalt carbonyl fragments into the silicone backbone of oligosilane. Oligosilane containing cobalt carbonyl groups in side organic substituents was obtained from oligolmethyl(phenylethynyl)Isilane and CO2(CO)8. The reaction of 1,2-bis(phenylethyny1)tetramethyldisilane with Co2(CO)8 proceeds with the sequential attachment of cobalt carbonyl fragments to ethynyl groups to form disilane derivatives [2-CCPhCo2(CO)6] Thermal decomposition of cobalt-containing oligosilanes affords a mixture of paramagnets and ferromagnets.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya. No. 10, pp. 2561–2567, October, 1996. 相似文献
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V. V. Semenov N. F. Cherepennikova L. G. Klapshina B. A. Bushuk S. B. Bushuk W. E. Douglas 《Russian Journal of Coordination Chemistry》2005,31(7):521-529
Fluorescence and fluorescence excitation spectra of phosphorus-containing organosilicon ligands O = PX2NHR (X = NMe2, OPh; R = CH2CH2CH2Si(Oet)3 and their Eu(III) complexes in acetonitrile solutions and in films are studied. In UV region (285–420 nm), bis(dimethylamido)triethoxysilylpropylamidophosphate (X = NMe2) and diphenyltriethoxysilylpropylamidophosphate (X = OPh) exhibit two emission bands, whose position and intensity depend on the nature of substituents at the phosphorus atom. The Eu complexes show the ligand and the cation luminescence. The emission bands of coordinated ligands are shifted to long-wave region. The cation luminescence appears as three or four bands due to f-f transitions from the excited 5
D
0 level to the lower 7
F
1–4 levels. The most intense transition is 5
D
0 → 7
F
2. The emission band in a region of 420 nm appears in solutions and films prepared from both pure ligands and their Eu(III) complexes. This band is due to luminescence of spatially crosslinked nanoparticles of sesquioxane structure. The intensity ratio of the Eu3+ emission bands changes when going from solutions to films, the emission intensity increases in a range of 420 nm. Films containing incorporated Er complexes with amidophosphates show intense luminescence of a matrix at 430 nm and a series of weak narrow bands due to the Er3+ cation at 550–700 nm.__________Translated from Koordinatsionnaya Khimiya, Vol. 31, No. 7, 2005, pp. 550–558.Original Russian Text Copyright © 2005 by Semenov, Cherepennikova, Klapshina, B. Bushuk, S. Bushuk, Douglas. 相似文献
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S. V. Klement’eva N. F. Cherepennikova V. V. Semenov A. I. Kirillov M. A. Lopatin O. V. Kuznetsova Yu. A. Kurskii A. A. Zaitsev L. G. Klapshina V. E. Duglas G. A. Domrachev 《Russian Chemical Bulletin》2007,56(11):2214-2224
A method for the synthesis of polyphosphosiloxane by the thermal condensation of an equimolar mixture of trimethyl phosphate
and (3-aminopropyl)triethoxysilane at 200 °C was developed. The reaction affords ethanol and polyphosphosiloxane-{Si(OEt)[(CH2)3NR1R2]-O-P(O)(OMe)-O}n-(R1 = H, Me; R2 = Me), whose composition and structure were confirmed by 1H, 13C, and 31P NMR spectroscopy, IR spectroscopy, and elemental analysis. The scheme of polymerization involving the intermediate formation
of methyl-and dimethylphosphoric acids and their condensation with ethoxysilanes was proposed. The calcination of the obtained
polyphosphosiloxane in vacuo at 350 °C results in the elimination of the amino groups and alkoxide substituents, and a spatially cross-linked polymer
is formed as an amorphous powder. Its further thermolysis at 600 and 1000 °C gives crystalline phosphosilicates Si5O(PO4)6 or SiP2O7. Their amorphous and crystalline samples were characterized by IR spectroscopy, X-ray diffraction analysis, and solid-state
13C and 31P spectroscopy.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 2138–2148, November, 2007. 相似文献
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A. S. Gordetsov A. P. Kozina T. N. Brevnova N. F. Cherepennikova V. V. Semenov S. E. Skobeleva T. I. Chulkova O. S. Rukevich Yu. I. Dergunov 《Russian Chemical Bulletin》1987,36(4):867-869
Conclusion The reactions of the silver, cesium or rubidium salts of diallylisocyanurate and of trimethylsilyldiallylisocyanurate with pentamethylchlorodisilane, 1,2-dichlorotetramethyldisilane, 1,3-dichlorotetramethyldisiloxane and -(trialkylgermyl)propionyl chlorides leads to the corresponding organosilicon and organogermanium triazine derivatives. The reaction of pentamethylchlorodisilane with the trisilver salt of cyanuric acid or tris(trimethyl-silyl) cyanurate leads to the formation of tris(pentamethyldisilanyl)cyanurate.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 941–943, April, 1987. 相似文献
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Semenov V. V. Ladilina E. Yu. Cherepennikova N. F. Chesnokova T. A. 《Russian Journal of Applied Chemistry》2002,75(1):127-134
Photolytic vulcanization of siloxane rubber films in the presence of trimethylsiloxy-substituted di- and trisilanes, oligodimethylsilanosiloxanes (Me2SiO)
m
(SiMe2)
n
, Me(Me2SiO)
m
(SiMe2)
n
Me, oligodimethylsilanes Me(Me2Si)
n
Me, and volatile pyrolysis products of polydimethylsilane was studied. 相似文献
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