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ESR study of radical anions ando-semiquinone metal complexes—5,5′-di-tert-butyl-2,2′-dimethylbiphenyl-3,4,3′,4′-diquinone derivatives

  • Physical Chemistry
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Russian Chemical Bulletin Aims and scope

Abstract

The influence of the nature of the metal (metallofragment) on the spin density distribution in radical anions ando-semiquinone metal complexes (derivatives of sterically hindered 5,5′-di-tert-butyl-2,2′-dimethylbiphenyl-3,4,3′,4′-diquinone) was studied by ESR spectroscopy. Despite the difference in the characters of the spin density distribution between the radical anion derivatives (M=Li, Na, K, and CoCp2) ando-semiquinone complexes (MLn=Tl, SnPh3, TlMe2, Cu(PPh3)2, Cu(CNR)2, and Mn(CO)4) in all cases significant delocalization of the spin density of an unpaired electron into theo-quinone ring is observed.

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Authors and Affiliations

  1. G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 ul. Tropinina, 603600, Nizhnii Novgorod, Russian Federation

    G. A. Abakumov, V. K. Cherkasov, V. I. Nevodchikov, N. O. Druzhkov & V. A. Kuropatov

Authors
  1. G. A. Abakumov
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  2. V. K. Cherkasov
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  3. V. I. Nevodchikov
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  4. N. O. Druzhkov
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  5. V. A. Kuropatov
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Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 904–907, May, 1998.

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Abakumov, G.A., Cherkasov, V.K., Nevodchikov, V.I. et al. ESR study of radical anions ando-semiquinone metal complexes—5,5′-di-tert-butyl-2,2′-dimethylbiphenyl-3,4,3′,4′-diquinone derivatives. Russ Chem Bull 47, 875–878 (1998). https://doi.org/10.1007/BF02498155

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  • DOI: https://doi.org/10.1007/BF02498155

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