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The electronic spectra and structure of palladium(II) molecular complexes and clusters

  • Structure of Matter and Quantum Chemistry
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Abstract

The electronic absorption spectra of palladium(II) diacetate (PDA) complexes with phosphines and sulfides (D) with the composition Pd(OAc)2 · 2D (1: 2) contain an intense charge transfer band at λmax ∼ 300 nm (ɛ ∼ 15 000) and do not absorb in the region of 400 nm. Polynuclear compounds such as PDA trimer [Pd(OAc)2]3, trimer complexes with D, and four- and six-membered palladium metallocyclic compounds formed in the interaction of PDA with mercaptans absorb at longer wavelengths. The electronic absorption spectra of all the palladium polynuclear compounds (clusters) contain bands at λmax ∼ 400 nm (ɛ ∼ 1000). The appearance of these bands in the spectra of palladium clusters is evidence of the formation of chemical bonds between neighboring Pd atoms, although Pd…Pd distances substantially exceed the sum of the covalent radii of palladium atoms.

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Authors and Affiliations

  1. Karpov Research Institute of Physical Chemistry, ul. Vorontsovo pole 10, Moscow, 105064, Russia

    I. P. Romm, A. A. Malkov & S. A. Lebedev

  2. Lomonosov State Academy of Fine Chemical Technology, pr. Vernadskogo 86, Moscow, 117571, Russia

    V. V. Levashova & T. M. Buslaeva

Authors
  1. I. P. Romm
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  2. A. A. Malkov
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  3. S. A. Lebedev
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  4. V. V. Levashova
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  5. T. M. Buslaeva
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Correspondence to A. A. Malkov.

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Original Russian Text © I.P. Romm, A.A. Malkov, S.A. Lebedev, V.V. Levashova, T.M. Buslaeva, 2011, published in Zhurnal Fizicheskoi Khimii, 2011, Vol. 85, No. 2, pp. 300–305.

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Romm, I.P., Malkov, A.A., Lebedev, S.A. et al. The electronic spectra and structure of palladium(II) molecular complexes and clusters. Russ. J. Phys. Chem. 85, 248–253 (2011). https://doi.org/10.1134/S0036024411020270

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  • DOI: https://doi.org/10.1134/S0036024411020270

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