Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Letter
Ultrafast Electron Solvation in Room Temperature Ionic Liquid Observed by Femtosecond Time-resolved Near-IR Spectroscopy
Manping YeKoichi Iwata
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2019 Volume 48 Issue 5 Pages 422-425

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Abstract

The solvation process of electrons reflects the solvent structure and its fluctuation sensitively. The solvation process of electrons in room-temperature ionic liquid N,N,N-trimethyl-N-propylammonium bis(trifluoromethylsulfonyl) amide, N1113+ NTf2, is observed with femtosecond near-IR absorption spectroscopy. A broad absorption band from the solvated electrons shows a continuous blue-shift of 0.09 eV within 1 ns of electron injection. The peak shift kinetics, well represented by a stretched exponential decay function, indicates the presence of two or more different solvation environments in this ionic liquid.

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© 2019 The Chemical Society of Japan
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