Behavior of the heterogeneous electron-transfer rate constants of arenes and substituted anthracenes in room-temperature ionic liquids

Stephen R. Belding; Neil V. Rees; Leigh Aldous; Christopher Hardacre; Richard G. Compton

doi:10.1021/jp7103598

Behavior of the heterogeneous electron-transfer rate constants of arenes and substituted anthracenes in room-temperature ionic liquids

Stephen R. Belding, Neil V. Rees, Leigh Aldous, Christopher Hardacre, Richard G. Compton

Chemistry

Research output: Contribution to journal › Article › peer-review

38 Citations (Scopus)

Abstract

We report the anodic oxidation of several arenes and anthracenes within room-temperature ionic liquids (RTILs). In particular, the heterogeneous electron-transfer rates (k0) for substituted anthracenes and arenes are also investigated in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C2mim][NTf2]) and found not to obey the outer-sphere Marcus-type behavior of these compounds in contrast to the behavior in traditional organic solvents, in particular the predictions for k0 with molecular size and solvent static dielectric constant. To obtain the electron-transfer rate for 9-phenylanthracene, the dimerization and heterogeneous electron-transfer kinetics of its electrogenerated radical cations is studied in [C2mim][NTf2] and eight other RTILs and are both found to be largely independent of the solution viscosity.

Original language	English
Pages (from-to)	1650-1657
Journal	Journal Of Physical Chemistry C
Volume	112
Issue number	5
DOIs	https://doi.org/10.1021/jp7103598
Publication status	Published - 7 Feb 2008

Access to Document

10.1021/jp7103598

Cite this

@article{04c805c83b45429195c549b5f31c2cf9,

title = "Behavior of the heterogeneous electron-transfer rate constants of arenes and substituted anthracenes in room-temperature ionic liquids",

abstract = "We report the anodic oxidation of several arenes and anthracenes within room-temperature ionic liquids (RTILs). In particular, the heterogeneous electron-transfer rates (k0) for substituted anthracenes and arenes are also investigated in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C2mim][NTf2]) and found not to obey the outer-sphere Marcus-type behavior of these compounds in contrast to the behavior in traditional organic solvents, in particular the predictions for k0 with molecular size and solvent static dielectric constant. To obtain the electron-transfer rate for 9-phenylanthracene, the dimerization and heterogeneous electron-transfer kinetics of its electrogenerated radical cations is studied in [C2mim][NTf2] and eight other RTILs and are both found to be largely independent of the solution viscosity.",

author = "Belding, {Stephen R.} and Rees, {Neil V.} and Leigh Aldous and Christopher Hardacre and Compton, {Richard G.}",

year = "2008",

month = feb,

day = "7",

doi = "10.1021/jp7103598",

language = "English",

volume = "112",

pages = "1650--1657",

journal = "Journal Of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

number = "5",

}

TY - JOUR

T1 - Behavior of the heterogeneous electron-transfer rate constants of arenes and substituted anthracenes in room-temperature ionic liquids

AU - Belding, Stephen R.

AU - Rees, Neil V.

AU - Aldous, Leigh

AU - Hardacre, Christopher

AU - Compton, Richard G.

PY - 2008/2/7

Y1 - 2008/2/7

N2 - We report the anodic oxidation of several arenes and anthracenes within room-temperature ionic liquids (RTILs). In particular, the heterogeneous electron-transfer rates (k0) for substituted anthracenes and arenes are also investigated in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C2mim][NTf2]) and found not to obey the outer-sphere Marcus-type behavior of these compounds in contrast to the behavior in traditional organic solvents, in particular the predictions for k0 with molecular size and solvent static dielectric constant. To obtain the electron-transfer rate for 9-phenylanthracene, the dimerization and heterogeneous electron-transfer kinetics of its electrogenerated radical cations is studied in [C2mim][NTf2] and eight other RTILs and are both found to be largely independent of the solution viscosity.

AB - We report the anodic oxidation of several arenes and anthracenes within room-temperature ionic liquids (RTILs). In particular, the heterogeneous electron-transfer rates (k0) for substituted anthracenes and arenes are also investigated in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C2mim][NTf2]) and found not to obey the outer-sphere Marcus-type behavior of these compounds in contrast to the behavior in traditional organic solvents, in particular the predictions for k0 with molecular size and solvent static dielectric constant. To obtain the electron-transfer rate for 9-phenylanthracene, the dimerization and heterogeneous electron-transfer kinetics of its electrogenerated radical cations is studied in [C2mim][NTf2] and eight other RTILs and are both found to be largely independent of the solution viscosity.

U2 - 10.1021/jp7103598

DO - 10.1021/jp7103598

M3 - Article

SN - 1932-7447

VL - 112

SP - 1650

EP - 1657

JO - Journal Of Physical Chemistry C

JF - Journal Of Physical Chemistry C

IS - 5

ER -

Behavior of the heterogeneous electron-transfer rate constants of arenes and substituted anthracenes in room-temperature ionic liquids

Abstract

Access to Document

Fingerprint

Cite this