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11.
I. L. Fedushkin V. A. Chudakova G. K. Fukin S. Dechert M. Hummert H. Schumann 《Russian Chemical Bulletin》2004,53(12):2744-2750
Hydrolysis of magnesium complexes containing the dianionic acenaphthenediimine ligands, (dpp-BIAN)Mg(thf)3 (1), (dph-BIAN)Mg(thf)3 (2), and (dtb-BIAN)Mg(thf)2 (3) (dpp-BIAN is 1,2-bis{ (2,6-diisopropylphenyl)imino}acenaphthene; dph-BIAN is 1,2-bis{(2-diphenyl)imino}acenaphthene; dtb-BIAN is 1,2-bis{(2,5-di-tert-butylphenyl)imino}acenaphthene), affords the corresponding diamines (dpp-BIAN)H2 (4), (dph-BIAN)H2(Et2O) (5), and (dtb-BIAN)H2 (6). Compounds 4 and 5 were isolated in the crystalline state and characterized by UV-Vis, IR, and 1H NMR spectroscopy. Partial hydrolysis of (dpp-BIAN)Na2(Et2O)3 gave the crystalline (dpp-BIAN)HNa(Et2O)2 complex (7), which was also characterized by spectroscopic methods. The structures of compounds 5 and 7 and free diimine dpp-BIAN were established by X-ray diffraction analysis.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp. 2634–2640, December, 2004. 相似文献
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I. L. Fedushkin N. M. Khvoinova A. Yu. Baurin V. A. Chudakova A. A. Skatova V. K. Cherkasov G. K. Fukin E. V. Baranov 《Russian Chemical Bulletin》2006,55(1):74-83
Reactions of diimines dtb-BIAN and dph-BIAN with GeCl2 afford germanium(II) complexes with radical-anionic ligands, (dtb-BIAN)GeCl (5) and (dph-BIAN)GeCl (6a), respectively, where dtb-BIAN is 1,2-bis[(2,5-di-tert-butylphenyl)imino]acenaphthene and dph-BIAN is 1,2-bis[(2-biphenyl)imino]acenaphthene. The latter reaction gives 6a along with [(dph-BIAN)GeCl]+[GeCl3]− (6b). The reactions of tin(II) and antimony(III) chlorides with dtb-BIAN and dpp-BIAN produce complexes of these halides with neutral coordinated diimines, viz., (dtb-BIAN)SnCl2 (7) and (dpp-BIAN)SbCl3 (8) (dpp-BIAN is 1,2-bis[(2,6-di-isopropylphenyl)imino]acenaphthene). Paramagnetic complexes 5 and 6a were studied by ESR spectroscopy. Diamagnetic compounds 7 and 8 were characterized by 1H NMR spectroscopy. The structures of complexes 5, 6a,b, 7, 8, and (dpp-BIAN)Ge (9) were established by X-ray diffraction analysis.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 1, pp. 71–80, January, 2006. 相似文献
13.
Peter P. Onys'ko Elena A. Suvalova Tatiana I. Chudakova Anatolii D. Sinitsa 《Heteroatom Chemistry》1993,4(4):361-364
The lithium diisopropylamide (LDA) induced regioselective 1,3-rearrangement of 3- and 2- pyridyl phosphates into the corresponding 3-hydroxy-4-pyridyl-and 2-hydroxy-3-pyridylphosphonates has been observed and investigated. The rearrangement is proposed as a useful method for a directed introduction of a phosphoryl group into a hydroxypyridine nucleus. 相似文献
14.
I. L. Fedushkin A. A. Skatova V. A. Chudakova V. K. Cherkasov S. Dechert H. Schumann 《Russian Chemical Bulletin》2004,53(10):2142-2147
Four- and five-coordinate magnesium and calcium complexes containing two diimine radical-anion ligands with compositions (dpp-BIAN)2Mg (1), (dpp-BIAN)2Ca (2), (dtb-BIAN)2Mg (3), and (dtb-BIAN)2Ca(THF) (4) (dpp-BIAN is 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene and dtb-BIAN is 1,2-bis[(2,5-di-tert-butylphenyl)imino]acenaphthene) were synthesized. At 120 K, the ESR spectra of complexes 1–4 in a toluene matrix show signals characteristic of biradical derivatives. The molecular structure of compound 2 was established by X-ray diffraction analysis. At 293 K, the magnetic moments of compounds 1, 2, 3, and 4 are 2.55, 2.57, 2.76, and 2.79 μB, respectively, which are indicative of the presence of two unpaired electrons localized on the ligands.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2051–2055, October, 2004. 相似文献
15.
Igor L. Fedushkin Prof. Dr. Valentina A. Chudakova Alexandra A. Skatova Natalie M. Khvoinova Yuri A. Kurskii Tatyana A. Glukhova Georgy K. Fukin Sebastian Dechert Markus Hummert Herbert Schumann Prof. Dr. 《无机化学与普通化学杂志》2004,630(4):501-507
The new rigid bidentate nitrogen ligands 1, 2‐bis[(2, 5‐di‐tert‐butylphenyl)imino]acenaphthene ( 1 ) (dtb‐BIAN) and 1, 2‐bis[(2‐biphenyl)imino]acenaphthene ( 2 ) (bph‐BIAN) have been synthesized by condensation of 1, 2‐acenaphthylenedione with 2, 5‐di‐tert‐butylaniline and 2‐aminobiphenyl, respectively. Reduction of 1 and 2 with magnesium and calcium results in the formation of the monomeric metal complexes [(dtb‐BIAN)Mg(THF)2] ( 3 ), [(bph‐BIAN)Mg(DME)2] ( 4 ), and [(bph‐BIAN)Ca(THF)3] ( 5 ). Compounds 1 — 5 have been characterized by C/H analyses, IR, 1H NMR, and 13C NMR spectra, the structures of 2 , 3 , and 5 have been estimated by single crystal X‐ray diffraction. 相似文献
16.
Igor L. Fedushkin Valentina A. Chudakova Aleksandra A. Skatova Georgii K. Fukin 《Heteroatom Chemistry》2005,16(7):663-670
Compound [(dph‐BIAN)Mg(THF)]2 ( 2 ) was prepared by reacting magnesium metal with 1,2‐bis[(2‐biphenyl)imino]acenaphthene (dph‐BIAN) in THF, followed by crystallization from toluene. Reaction of CaI2 with (dpp‐BIAN)Li2 in toluene afforded [(dpp‐BIAN)Li]2Ca ( 3 ) (dpp‐BIAN = 1,2‐bis[(2,6‐diisopropylphenyl)imino]acenaphthene). Both complexes 2 and 3 were characterized by single crystal X‐ray diffraction. The 1H NMR spectroscopic data obtained for complex 3 in toluene solution indicated an agostic interaction between the methyl groups of the ligand and lithium atoms. © 2005 Wiley Periodicals, Inc. Heteroatom Chem 16:663–670, 2005; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/hc.20168 相似文献
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Alevtina N. Gosteva Mayya V. Kulikova Yulya P. Semushina Mariya V. Chudakova Nikita S. Tsvetov Vasilii V. Semushin 《Molecules (Basel, Switzerland)》2021,26(13)
Currently, the processes of obtaining synthetic liquid hydrocarbons and oxygenates are very relevant. Fischer-Tropsch synthesis (FTS) is the most important step in these processes. The products of thermal destruction in argon of the mixture [Co(NH3)6][Fe(CN)6] and Al(OH)3 were used as catalysts for CO hydrogenation. The resulting compositions were studied using powder X-ray diffraction, IR spectroscopy, elemental analysis, SEM micrographs. The specific surface area, pore and particle size distributions were determined. It was determined that the DCS-based catalysts were active in the high-temperature Fischer-Tropsch synthesis. The effect of aluminum in the catalyst composition on the distribution of reaction products was revealed. 相似文献