Electron transfer in a donor-substituted acridinium dye: Evidence for dynamical solvent control

M. L. Horng; K. Dahl; G. Jones; M. Maroncelli

doi:10.1016/S0009-2614(99)01258-0

Electron transfer in a donor-substituted acridinium dye: Evidence for dynamical solvent control

M. L. Horng
, K. Dahl
, G. Jones
, M. Maroncelli

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

50 Scopus citations

Abstract

Time-resolved emission is used to explore the intramolecular excited-state electron transfer in a donor-substituted acridinium dye in a variety of solvents at room temperature. Emission decays are predominantly bi-exponential, with the faster of the two time constants being a good measure of the charge transfer time. In 14 high-polarity solvents this time is correlated to the solvation times previously measured with the solvation probe Coumarin 153 via an apparent power law, τ_LE→CT≈8.4〈τ〉_solv ^0.65. In solvents less polar than acetone the times observed deviate widely from this relationship, probably due to the effects of ion pairing.

Original language	English (US)
Pages (from-to)	363-370
Number of pages	8
Journal	Chemical Physics Letters
Volume	315
Issue number	5-6
DOIs	https://doi.org/10.1016/S0009-2614(99)01258-0
State	Published - Dec 31 1999

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/S0009-2614(99)01258-0

Cite this

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title = "Electron transfer in a donor-substituted acridinium dye: Evidence for dynamical solvent control",

abstract = "Time-resolved emission is used to explore the intramolecular excited-state electron transfer in a donor-substituted acridinium dye in a variety of solvents at room temperature. Emission decays are predominantly bi-exponential, with the faster of the two time constants being a good measure of the charge transfer time. In 14 high-polarity solvents this time is correlated to the solvation times previously measured with the solvation probe Coumarin 153 via an apparent power law, τLE→CT≈8.4〈τ〉solv 0.65. In solvents less polar than acetone the times observed deviate widely from this relationship, probably due to the effects of ion pairing.",

author = "Horng, \{M. L.\} and K. Dahl and G. Jones and M. Maroncelli",

note = "Funding Information: The authors acknowledge the US Department of Energy, Office of Basic Energy Sciences, for the support of this work. We would also like to thank Joseph Gardecki for performing many initial explorations on donor-substituted acridinium compounds.",

year = "1999",

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doi = "10.1016/S0009-2614(99)01258-0",

language = "English (US)",

volume = "315",

pages = "363--370",

journal = "Chemical Physics Letters",

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TY - JOUR

T1 - Electron transfer in a donor-substituted acridinium dye

T2 - Evidence for dynamical solvent control

AU - Horng, M. L.

AU - Dahl, K.

AU - Jones, G.

AU - Maroncelli, M.

N1 - Funding Information: The authors acknowledge the US Department of Energy, Office of Basic Energy Sciences, for the support of this work. We would also like to thank Joseph Gardecki for performing many initial explorations on donor-substituted acridinium compounds.

PY - 1999/12/31

Y1 - 1999/12/31

N2 - Time-resolved emission is used to explore the intramolecular excited-state electron transfer in a donor-substituted acridinium dye in a variety of solvents at room temperature. Emission decays are predominantly bi-exponential, with the faster of the two time constants being a good measure of the charge transfer time. In 14 high-polarity solvents this time is correlated to the solvation times previously measured with the solvation probe Coumarin 153 via an apparent power law, τLE→CT≈8.4〈τ〉solv 0.65. In solvents less polar than acetone the times observed deviate widely from this relationship, probably due to the effects of ion pairing.

AB - Time-resolved emission is used to explore the intramolecular excited-state electron transfer in a donor-substituted acridinium dye in a variety of solvents at room temperature. Emission decays are predominantly bi-exponential, with the faster of the two time constants being a good measure of the charge transfer time. In 14 high-polarity solvents this time is correlated to the solvation times previously measured with the solvation probe Coumarin 153 via an apparent power law, τLE→CT≈8.4〈τ〉solv 0.65. In solvents less polar than acetone the times observed deviate widely from this relationship, probably due to the effects of ion pairing.

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U2 - 10.1016/S0009-2614(99)01258-0

DO - 10.1016/S0009-2614(99)01258-0

M3 - Article

AN - SCOPUS:0000371280

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VL - 315

SP - 363

EP - 370

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 5-6

ER -

Electron transfer in a donor-substituted acridinium dye: Evidence for dynamical solvent control

Abstract

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