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Title of Journal: Sci China Chem

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Abbravation: Science China Chemistry

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SP Science China Press

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DOI

10.1002/chin.200346160

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1869-1870

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Cation and anion substitution effects on the ultra

Authors: Rong Lu Wei Wang AnChi Yu
Publish Date: 2011/08/26
Volume: 54, Issue: 9, Pages: 1491-
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Abstract

Roomtemperature Ionic Liquids ILs have numerous unique properties that differ from those of conventional molecular solvents Although the unique properties of ILs have been suggested to origin from their microscopic interionic interaction detailed dynamics of interionic interaction of ILs has not been fully understood Here with the Femtosecond Optical HeterodyneDetected Raman Induced Kerr Effect Spectroscopy fsOHDRIKES we measured the ultrafast dynamics of the interionic interaction of three typical imidazolium based ILs 1butyl3methylimidazolium tetrafluoroborate bmimBF4 1butyl3methylimidazolium hexafluorophosphate bmimPF6 and 1decyl3methylimidazolium tetrafluoroborate dmimBF4 We observed several periods of subpicosecond oscillation in their fsOHDRIKES signals Through decomposing their fsOHDRIKES signals into four Brownian oscillators in time domain we explored the cation and anion substitution effects on the ultrafast dynamics of interionic interaction of ILs We found that the cation substitution affected all the low frequency motions we observed while the anion substitution only affected the two higher low frequency motions

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  1. Comparison of some multireference electronic structure methods in illustrative applications
  2. Direct electroreduction of solid cuprous chloride to copper powder in 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid
  3. Synthesis and antitumor activities of a new series of 4,5-dihydro-1 H -thiochromeno[4,3- d ]pyrimidine derivatives
  4. Advanced experimental methods toward understanding biophysicochemical interactions of interfacial biomolecules by using sum frequency generation vibrational spectroscopy
  5. Preface
  6. Cation and anion substitution effects on the ultrafast dynamics of interionic interaction in imidazolium based ionic liquids
  7. Development of small-molecule materials for high-performance organic solar cells
  8. Cyanide-bridged single molecule magnet based on a manganese(III) complex with TTF-fused Schiff base ligand
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