Mixed valence compounds: Vibronic coupling model for mixed-valence compounds.: Extension to two-site two-electron systems

Kosmas Prassides; Paul N. Schatz; Kin Y. Wong; Peter Day

doi:10.1142/9789812706836_0021

Mixed valence compounds: Vibronic coupling model for mixed-valence compounds.: Extension to two-site two-electron systems

Kosmas Prassides, Paul N. Schatz, Kin Y. Wong, Peter Day

Advanced Institute for Materials Research (AIMR)

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

The two-site one-electron vibronic coupling model of Piepho, Krausz, and Schatz (PKS) for mixed-valence systems is extended to two-site two-electron dimeric systems. The full dynamic problem is solved and characterization of the system reduces to a simple matrix diagonalization. For strong vibronic coupling, a perturbation treatment is also presented which leads to simple analytical expressions for the eigenvalues and eigenfunctions. The model is used to fit the absorption, resonance Raman, and luminescence spectra of the onedimensional chlorinebridged mixed-valence compound [Pt^IIL₄][Pt^IVL₄Cl₂]C1₄. 4H₂O (L = ethylamine), Wolffram’s Red Salt.

Original language	English
Title of host publication	Molecules into Materials
Subtitle of host publication	Case Studies in Materials Chemistry-Mixed Valency, Magnetism and Super Conductivity
Publisher	World Scientific Publishing Co.
Pages	376-385
Number of pages	10
ISBN (Electronic)	9789812706836
ISBN (Print)	9812700382, 9789812700384
DOIs	https://doi.org/10.1142/9789812706836_0021
Publication status	Published - 2007 Jan 1

ASJC Scopus subject areas

Chemistry(all)
Engineering(all)
Materials Science(all)
Physics and Astronomy(all)

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10.1142/9789812706836_0021

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Prassides, K., Schatz, P. N., Wong, K. Y., & Day, P. (2007). Mixed valence compounds: Vibronic coupling model for mixed-valence compounds.: Extension to two-site two-electron systems. In Molecules into Materials: Case Studies in Materials Chemistry-Mixed Valency, Magnetism and Super Conductivity (pp. 376-385). World Scientific Publishing Co.. https://doi.org/10.1142/9789812706836_0021

Mixed valence compounds : Vibronic coupling model for mixed-valence compounds.: Extension to two-site two-electron systems. / Prassides, Kosmas; Schatz, Paul N.; Wong, Kin Y.; Day, Peter.

Molecules into Materials: Case Studies in Materials Chemistry-Mixed Valency, Magnetism and Super Conductivity. World Scientific Publishing Co., 2007. p. 376-385.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Prassides, K, Schatz, PN, Wong, KY & Day, P 2007, Mixed valence compounds: Vibronic coupling model for mixed-valence compounds.: Extension to two-site two-electron systems. in Molecules into Materials: Case Studies in Materials Chemistry-Mixed Valency, Magnetism and Super Conductivity. World Scientific Publishing Co., pp. 376-385. https://doi.org/10.1142/9789812706836_0021

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abstract = "The two-site one-electron vibronic coupling model of Piepho, Krausz, and Schatz (PKS) for mixed-valence systems is extended to two-site two-electron dimeric systems. The full dynamic problem is solved and characterization of the system reduces to a simple matrix diagonalization. For strong vibronic coupling, a perturbation treatment is also presented which leads to simple analytical expressions for the eigenvalues and eigenfunctions. The model is used to fit the absorption, resonance Raman, and luminescence spectra of the onedimensional chlorinebridged mixed-valence compound [PtIIL4][PtIVL4Cl2]C14. 4H2O (L = ethylamine), Wolffram{\textquoteright}s Red Salt.",

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AB - The two-site one-electron vibronic coupling model of Piepho, Krausz, and Schatz (PKS) for mixed-valence systems is extended to two-site two-electron dimeric systems. The full dynamic problem is solved and characterization of the system reduces to a simple matrix diagonalization. For strong vibronic coupling, a perturbation treatment is also presented which leads to simple analytical expressions for the eigenvalues and eigenfunctions. The model is used to fit the absorption, resonance Raman, and luminescence spectra of the onedimensional chlorinebridged mixed-valence compound [PtIIL4][PtIVL4Cl2]C14. 4H2O (L = ethylamine), Wolffram’s Red Salt.

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Mixed valence compounds: Vibronic coupling model for mixed-valence compounds.: Extension to two-site two-electron systems

Abstract

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