Europium complexes with 1,2-bis(arylimino)acenaphthenes: a search for redox isomers

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• 作者：I. L. Fedushkin ; A. A. Skatova ; D. S. Yambulatov…
• 关键词：europium ; diimines ; molecular structure ; magnetic properties
• 刊名：Russian Chemical Bulletin
• 出版年：2015
• 出版时间：January 2015
• 年：2015
• 卷：64
• 期：1
• 页码：38-43
• 全文大小：384 KB
• 参考文献：1.T. Tezgerevska, K. G. Alley, C. Boskovic, Coord. Chem. Rev., 2014, 268, 23.CrossRef
  2.I. L. Fedushkin, O. V. Maslova, E. V. Baranov, A. S. Shavyrin, Inorg. Chem., 2009, 48, 2355.CrossRef
  3.I. L. Fedushkin, O. V. Maslova, A. G. Morozov, S. Dechert, S. Demeshko, F. Meyer, Angew. Chem., Int. Ed., 2012, 51, 10584.CrossRef
  4.J.-C. G. Bünzli, Acc. Chem. Res., 2006, 39, 53.CrossRef
  5.K. V. Vasudevan, A. H. Cowley, Chem. Commun., 2007, 3464.
  6.I. L. Fedushkin, V. A. Chudakova, G. K. Fukin, S. Dechert, M. Hummert, H. Schumann, Russ. Chem. Bull. (Int. Ed.), 2004, 53, 2744 [Izv. Akad. Nauk, Ser. Khim., 2004, 2634].CrossRef
  7.I. L. Fedushkin, O. V. Maslova, M. Hummert, H. Schumann, Inorg. Chem., 2010, 49, 2901.CrossRef
  8.R. T. Azuah, L. R. Kneller, Y. Qiu, P. L. W. TregennaPiggott, C. M. Brown, J. R. D. Copley, R. M. Dimeo, J. Res. Natl. Inst. Stan. Technol., 2009, 114, 341.CrossRef
  9.G. M. Sheldrick, SHELXTL v. 6.12, Structure Determination Software Suite, Bruker AXS, Madison (Wisconsin), USA, 2000.
  10. Agilent Technologies, CrysAlis Pro, Agilent Technologies Ltd, Yarnton, England, 2011.
  11.G. M. Sheldrick, SADABS v. 2012/1, Bruker/Siemens Area Detector Absorption Correction Program, Bruker AXS, Madison (Wisconsin), USA, 2012.
  
• 作者单位：I. L. Fedushkin (1)
  A. A. Skatova (1)
  D. S. Yambulatov (1)
  A. V. Cherkasov (1)
  S. V. Demeshko (2)
  
  1. G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 ul. Tropinina, 603950, Nizhny Novgorod, Russian Federation
  2. Institute of Inorganic Chemistry, Georg-August University, 4 Tammannstrasse, 37077, G?ttingen, Germany
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Chemistry
  Organic Chemistry
  Inorganic Chemistry
  Russian Library of Science
  
• 出版者：Springer New York
• ISSN：1573-9171

文摘

Reduction of 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene (dpp-bian, 1) with metallic europium in 1,2-dimethoxyethane (dme) under anaerobic conditions gave a europium(II) complex with the acenaphthene-1,2-diimine dianion, (dpp-bian)Eu(dme)₂ (4), in high yield. Oxidation of complex 4 with triphenyltin chloride or 1,2-dibromostilbene afforded the corresponding halogen derivatives [(dpp-bian)Eu(μ-Cl)(dme)]₂ (5) and [(dpp-bian)Eu(μ-Br)(dme)]₂ (6). The molecular structures of complexes 4-strong class="EmphasisTypeBold ">6 were determined by X-ray diffraction. The magnetic moments of complexes 5 and 6 remain constant over a temperature range from 25 to 295 K; they are indicative of the presence of the europium(II) ion and the dpp-bian radical anion in both the complexes. Keywords europium diimines molecular structure magnetic properties