4.5 Article

ESR Study of Light-Induced Valence Tautomerism of a Dinuclear Co Complex

Journal

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue 25, Pages 3761-3767

Publisher

WILEY-BLACKWELL
DOI: 10.1002/ejic.201100467

Keywords

Light-induced valence tautomerism; ESR; Cobalt; Charge transfer; Glasses

Funding

  1. Japan Society for the Promotion of Science (JSPS), Japan [21350081]
  2. Grants-in-Aid for Scientific Research [22108525, 21350081] Funding Source: KAKEN

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Light-induced valence tautomerism (LIVT) of a dinuclear complex, [{Co(dpqa)}(2)(dhbq)](PF(6))(3) (1), was investigated by ESR analysis of dhbq(3-). LIVT phenomena were observed in the sample diluted in the glass matrix as well as that in powder form. The signal decay and the relaxation were analyzed by double exponential fitting; the results suggest a two-step mechanism. Quantum mechanical tunneling was clearly observed in the glass matrix.

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