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Silver clusters: Optical absorption and ESR spectra; structure and calculation of electron transitions

  • Physical Chemistry
  • Published:
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Abstract

The formation of Ag3 2+ and Ag4 + clusters upon freezing out of aqueous-alcohol glassy solutions of AgClO4 by γ-irradiation at 77 K was established by ESR and optical spectroscopies. The Ag3 2+ cluster is formed by subsequent addition of Ag+ ions to a silver atom, and the Ag4 + cluster is most probably formed by the reduction of the Ag4 2+ cluster by alcohol radicals. The energies of optical transitions and energy gaps far the Ag4 m+ cluster (m = 0 to 3) were calculated. The absorption bands of the clusters shift to the UV region as the charge increases, which agrees with the experimental results.

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Authors and Affiliations

  1. Institute of Physical Chemistry, Russian Academy of Sciences, 31 Leninsky prosp., 117915, Moscow, Russian Federation

    B. G. Erskov, N. L. Sukhov, A. V. Kiseleva & G. V. Ionova

Authors
  1. B. G. Erskov
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  2. N. L. Sukhov
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  3. A. V. Kiseleva
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  4. G. V. Ionova
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Additional information

Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 586–590, March, 1996.

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Erskov, B.G., Sukhov, N.L., Kiseleva, A.V. et al. Silver clusters: Optical absorption and ESR spectra; structure and calculation of electron transitions. Russ Chem Bull 45, 545–549 (1996). https://doi.org/10.1007/BF01435779

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  • DOI: https://doi.org/10.1007/BF01435779

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