Solvation and rotational dynamics in acetonitrile/propylene carbonate mixtures: A binary system for use in dynamical solvent effect studies

J. A. Gardecki, Mark Maroncelli

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

Equilibrium and nonequilibrium solvation properties as measured by the Stokes shift of coumarin 153 are reported for a series of acetonitrile/propylene carbonate binary mixtures at room temperature. Steady-state spectroscopy shows that the solvent reorganization energy is independent of composition in this mixture. Solvation and rotational times vary nearly ten-fold between the pure solvent limits, in a manner that is correlated to bulk solution viscosity. The wide range of solvation times together with the constant solvent reorganization energy should render this binary system useful for investigating dynamical solvent effects on charge-transfer processes.

Original languageEnglish (US)
Pages (from-to)571-578
Number of pages8
JournalChemical Physics Letters
Volume301
Issue number5-6
DOIs
StatePublished - Mar 5 1999

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Solvation
propylene
acetonitrile
solvation
carbonates
Binary mixtures
binary mixtures
Charge transfer
charge transfer
Spectroscopy
Viscosity
viscosity
propylene carbonate
energy
shift
room temperature
Chemical analysis
spectroscopy
Temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

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AB - Equilibrium and nonequilibrium solvation properties as measured by the Stokes shift of coumarin 153 are reported for a series of acetonitrile/propylene carbonate binary mixtures at room temperature. Steady-state spectroscopy shows that the solvent reorganization energy is independent of composition in this mixture. Solvation and rotational times vary nearly ten-fold between the pure solvent limits, in a manner that is correlated to bulk solution viscosity. The wide range of solvation times together with the constant solvent reorganization energy should render this binary system useful for investigating dynamical solvent effects on charge-transfer processes.

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