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Spirocyclic derivatives of nitronyl nitroxides in the design of heterospin CuII complexes manifesting spin transitions

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Abstract

A method was developed for the synthesis of a nitronyl nitroxide containing cyclopentane substituents in positions 4 and 5 of the imidazoline ring, viz., 2-(3-pyridyl)-4,5-bis(spiropentyl)-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl (LCP). The reaction of CuII hexafluoroacetylacetonate with LCP affords different products depending on the reaction conditions: mononuclear [Cu(hfac)2(LCP)2], binuclear [Cu(hfac)2LCP]2, tetranuclear {[Cu(hfac)2]4(LCP)2}, or chain polymer {[Cu(hfac)2]3(LCP)2} n . Temperature changes induce structural transformations accompanied by a change in the spin state in exchange clusters in the solid [Cu(hfac)2LCP]2 and {[Cu(hfac)2]4(LCP)2}.

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Authors and Affiliations

  1. International Tomography Center, Siberian Branch of the Russian Academy of Sciences, 3a ul. Institutskaya, 630090, Novosibirsk, Russian Federation

    N. A. Artiukhova, K. Yu. Maryunina, S. V. Fokin, E. V. Tretyakov, G. V. Romanenko, A. V. Polushkin, A. S. Bogomyakov, R. Z. Sagdeev & V. I. Ovcharenko

  2. Novosibirsk State University, 2 ul. Pirogova, 630090, Novosibirsk, Russian Federation

    N. A. Artiukhova & A. V. Polushkin

Authors
  1. N. A. Artiukhova
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  2. K. Yu. Maryunina
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  3. S. V. Fokin
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  4. E. V. Tretyakov
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  5. G. V. Romanenko
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  6. A. V. Polushkin
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  7. A. S. Bogomyakov
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  8. R. Z. Sagdeev
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  9. V. I. Ovcharenko
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Correspondence to V. I. Ovcharenko.

Additional information

Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2132–2140, October, 2013.

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Artiukhova, N.A., Maryunina, K.Y., Fokin, S.V. et al. Spirocyclic derivatives of nitronyl nitroxides in the design of heterospin CuII complexes manifesting spin transitions. Russ Chem Bull 62, 2132–2140 (2013). https://doi.org/10.1007/s11172-013-0312-x

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  • DOI: https://doi.org/10.1007/s11172-013-0312-x

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