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Title: Solvent controlled intramolecular electron transfer in mixtures of 1-butyl-3-methylimidizolium tetrafluoroborate and acetonitrile

Abstract

Time-resolved emission techniques were used to study the excited-state intramolecular electron transfer of 9-(4-biphenyl)-10-methylacridinium (BPAc+) in mixtures of 1-butyl-3-methylimidizolium tetrafluoroborate ([Im 41][BF 4])+ acetonitrile (ACN), a mixture previously shown to be of nearly constant polarity and nearly ideal mixing behavior. Reaction times (τ rxn) track solvation times (τsolv) as a function of mixture composition over a range of more than 3 orders of magnitude in τ solv. This same correlation extends to a variety of neat dipolar solvents and ionic liquids. Reaction times are ∼2-fold larger than τ solv over most of the range studied but appear to reach a limiting value of ∼3 ps in the fastest solvents.

Authors:
 [1]; ORCiD logo [1]
  1. Pennsylvania State Univ., University Park, PA (United States)
Publication Date:
Research Org.:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division; USDOE
OSTI Identifier:
1512931
Alternate Identifier(s):
OSTI ID: 1417940
Grant/Contract Number:  
SC0008640; DESC0008640
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 148; Journal Issue: 19; Journal ID: ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Rumble, Christopher A., and Maroncelli, Mark. Solvent controlled intramolecular electron transfer in mixtures of 1-butyl-3-methylimidizolium tetrafluoroborate and acetonitrile. United States: N. p., 2018. Web. doi:10.1063/1.5000727.
Rumble, Christopher A., & Maroncelli, Mark. Solvent controlled intramolecular electron transfer in mixtures of 1-butyl-3-methylimidizolium tetrafluoroborate and acetonitrile. United States. doi:10.1063/1.5000727.
Rumble, Christopher A., and Maroncelli, Mark. Thu . "Solvent controlled intramolecular electron transfer in mixtures of 1-butyl-3-methylimidizolium tetrafluoroborate and acetonitrile". United States. doi:10.1063/1.5000727. https://www.osti.gov/servlets/purl/1512931.
@article{osti_1512931,
title = {Solvent controlled intramolecular electron transfer in mixtures of 1-butyl-3-methylimidizolium tetrafluoroborate and acetonitrile},
author = {Rumble, Christopher A. and Maroncelli, Mark},
abstractNote = {Time-resolved emission techniques were used to study the excited-state intramolecular electron transfer of 9-(4-biphenyl)-10-methylacridinium (BPAc+) in mixtures of 1-butyl-3-methylimidizolium tetrafluoroborate ([Im41][BF4])+ acetonitrile (ACN), a mixture previously shown to be of nearly constant polarity and nearly ideal mixing behavior. Reaction times (τrxn) track solvation times (τsolv) as a function of mixture composition over a range of more than 3 orders of magnitude in τsolv. This same correlation extends to a variety of neat dipolar solvents and ionic liquids. Reaction times are ∼2-fold larger than τsolv over most of the range studied but appear to reach a limiting value of ∼3 ps in the fastest solvents.},
doi = {10.1063/1.5000727},
journal = {Journal of Chemical Physics},
number = 19,
volume = 148,
place = {United States},
year = {2018},
month = {5}
}

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