Communication

Light-Induced Excited Spin State Trapping in an Exchange-Coupled Nitroxide-Copper(II)-Nitroxide Cluster†

  1. Matvey Fedin Dr.1,2,
  2. Victor Ovcharenko Prof.1,
  3. Renad Sagdeev Prof.1,
  4. Edward Reijerse Dr.2,
  5. Wolfgang Lubitz Prof. Dr.2,
  6. Elena Bagryanskaya Prof.1

Article first published online: 28 JUL 2008

DOI: 10.1002/anie.200801400

Issue

Angewandte Chemie International Edition

Angewandte Chemie International Edition

Volume 47, Issue 36, pages 6897–6899, August 25, 2008

Additional Information

How to Cite

Fedin, M., Ovcharenko, V., Sagdeev, R., Reijerse, E., Lubitz, W. and Bagryanskaya, E. (2008), Light-Induced Excited Spin State Trapping in an Exchange-Coupled Nitroxide-Copper(II)-Nitroxide Cluster. Angew. Chem. Int. Ed., 47: 6897–6899. doi: 10.1002/anie.200801400

Author Information

  1. 1

    International Tomography Center SB RAS, Institutskaya 3a, Novosibirsk, 630090 (Russia), Fax: (+7) 383-333-1399 http://www.tomo.nsc.ru

  2. 2

    Max-Planck-Institut für Bioanorganische Chemie, 45470 Mülheim/Ruhr (Germany)

  1. †

    We thank Dr. K. Maryunina (ITC Novosibirsk) for providing us with the compound, Dr. E. Bill (MPI Mülheim) for fruitful discussions, and Dr. W. E. Klotzbücher (MPI Mülheim) for the FT-IR data. This work was supported by the Alexander von Humboldt Foundation (M.F.), the Max Planck Society; the RFBR (06-03-32157, 08-03-00326) and the Council at the RF president (MK-60.2008.3).

Publication History

  1. Issue published online: 20 AUG 2008
  2. Article first published online: 28 JUL 2008
  3. Manuscript Revised: 30 APR 2008
  4. Manuscript Received: 24 MAR 2008

Funded by

  • Alexander von Humboldt Foundation
  • Max Planck Society
  • RFBR. Grant Numbers: 06-03-32157, 08-03-00326
  • Council at the RF president. Grant Number: MK-60.2008.3

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Keywords:

  • EPR spectroscopy;
  • LIESST;
  • magnetic properties;
  • molecular switching;
  • spin crossover
Thumbnail image of graphical abstract

Beyond the classics: An exchange-coupled three-spin cluster of copper(II) with nitroxides can be converted by light from a strongly to a weakly coupled spin state (see picture), the latter being metastable at low temperatures. This kind of magnetic photoswitching is very similar to the LIESST effect in spin-crossover complexes of iron. Such compounds form a new class of systems capable of optical switching of their magnetic properties.

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