First excited state properties and static hyperpolarizability of ruthenium(II) ammine complexes

Talgat M. Inerbaev, Rodion Vladimirovich Belosludov, Hiroshi Mizuseki, Masae Takahashi, Yoshiyuki Kawazoe

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

First principles calculations were used to study the electronic excitation energies (E), transition dipole moments (u), and difference of dipole moments between ground and excited states (Δμ) for low-lying singlets of the series of ruthenium(II) ammine complexes. Both cases of the gas phase and the acetonitrile solution were investigated in order to explain the discrepancy between the recent experimental and theoretical results and to develop the optimal way of estimation for the first static hyperpolarizability in the framework of a two-state model introduced by Oudar and Chemla. The present calculations reveal that the effect of solvent on the electronic properties of investigated compounds is not only the change of the excitation energy but also the increasing of ground-state molecular polarization and intensification of metal-to-ligand intramolecular charge transfer for electronic excitations. These effects lead to increasing of the values of Δμ and ground-state dipole moment μg in solution as compared with the gas-phase ones. The proposed theoretical approach gives good agreement with experiment and allows one to apply it for designing a new perspective nonlinear optical active organometallics.

Original languageEnglish
Pages (from-to)1325-1334
Number of pages10
JournalJournal of Chemical Theory and Computation
Volume2
Issue number5
DOIs
Publication statusPublished - 2006 Dec 1

ASJC Scopus subject areas

  • Computer Science Applications
  • Physical and Theoretical Chemistry

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