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Adiabatic potentials of linear three-site mixed-valence systems

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Abstract

We propose a method for calculating adiabatic potentials of linear or quasi-linear threesite systems of mixed valence. The method is based on transformation of the potential energy matrix to two effective interacting modes. The adiabatic potential is calculated and its extrema are found. The electronic wave functions at the minima of the adiabatic potential correspond to complex charge distributions in a cluster. The barrier to transition of the “extra” electron between the terminal atoms is lower than for the transition from the terminal atom to the central atom.

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Literature cited

  1. N. S. Hush, “Electron delocalization, structure, and dynamics,” in: Mixed-Valence Compounds, Riedel, Dordrecht (1982), pp. 150–188.

    Google Scholar 

  2. M. B. Robin and P. Day, “Mixed-valence chemistry — a survey and classification,” Adv. Inorg. Org. Chem. Radiochem.,10, 247–422 (1967).

    Google Scholar 

  3. N. S. Hush, “Inequivalent XPS binding energies in symmetrical delocalized mixed-valence complexes,” Chem. Phys.,10, No. 3, 361–366 (1975).

    Google Scholar 

  4. M. J. Ondrechen, J. Ko, and L. J. Root, “Two-dimensional potential surfaces for bridged mixed-valence dimers,” J. Phys. Chem.,88, No. 24, 5919–5923 (1984).

    Google Scholar 

  5. J. Ko and M. J. Ondrechen, “Line shape of the intervalence transfer band in bridged mixedvalence dimers: the delocalized case,” J. Am. Chem. Soc.,107, No. 22, 6161–6167 (1985).

    Google Scholar 

  6. S. A. Borshch, I. N. Kotov, and I. B. Bersuker, “Electron delocalization in trinuclear mixed-valence clusters,” Chem. Phys. Lett.,89, No. 5, 381–384 (1982).

    Google Scholar 

  7. J. P. Launay and F. Babonneau, “Semiclassical model of a trinuclear mixed-valence system,” Chem. Phys.,67, No. 3, 295–300 (1982).

    Google Scholar 

  8. R. D. Cannon, L. Montry, D. B. Brown, et al., “Partial electron delocalization in a mixed valence iron(III)-iron(II) complex,” J. Am. Chem. Soc.,106, No. 9, 2591–2594 (1984).

    Google Scholar 

  9. S. E. Woehler, R. J. Witterbort, S. M. Oh, et al., “Solid-state2H NMR,57Fe Mössbauer, and X-ray structural characteristics of μ3-oxo-bridged mixed-valence Fe3O(O2CCH3)6(4-Mepy)3 (benzene). Dynamics of the benzene solvate molecules influencing intramolecular electron transfer,” J. Am. Chem. Soc.,108, No. 11, 2938–2946 (1986).

    Google Scholar 

  10. M. J. Powers, R. W. Callahan, D. J. Salmon, et al., “Intervalence transfer in ligandbridged, trimeric complexes of ruthenium,” Inorg. Chem.,15, No. 4, 894–900 (1976).

    Google Scholar 

  11. A. Von Kameke, G. M. Tom, and H. Taube, “μ-Pyrazine polynuclear mixed-valence species based on trans ruthenium tetraamines,” Inorg. Chem.,17, No. 7, 1790–1796 (1978).

    Google Scholar 

  12. K. Y. Wong, “Vibronic coupling model for a three-site single-electron system,” Chem. Phys. Lett.,125, No. 5/6, 485–489 (1986).

    Google Scholar 

  13. C. Joachim and J. P. Launay, “Possibility of a molecular treatment of a signal,” Nouv. J. Chim.,8, No. 2, 723–728 (1984).

    Google Scholar 

  14. I. B. Bersuker and V. Z. Polinger, Vibronic Couplings in Molecules and Crystals [in Russian], Nauka, Moscow (1983).

    Google Scholar 

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Translated from Teoreticheskaya i Éksperimental'naya Khimiya, Vol. 25, No. 2, pp. 129–134, March–April, 1989.

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Borshch, S.A., Kotov, I.N. Adiabatic potentials of linear three-site mixed-valence systems. Theor Exp Chem 25, 115–119 (1989). https://doi.org/10.1007/BF01134998

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  • DOI: https://doi.org/10.1007/BF01134998

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