Effect of charge delocalization on radical ion pair electronic coupling

Louise E. Sinks; Emily A. Weiss; Jovan M. Giaimo; Michael R. Wasielewski

doi:10.1016/j.cplett.2005.01.093

Effect of charge delocalization on radical ion pair electronic coupling

Louise E. Sinks, Emily A. Weiss, Jovan M. Giaimo, Michael R. Wasielewski^*

^*Corresponding author for this work

Chemistry

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

15 Scopus citations

Abstract

Photoinduced charge separation and recombination were studied in a series of covalent donor-acceptor triads consisting of aniline, 1-aminonaphthalene, or 9-aminoanthracene donors (D) attached to a 4-aminonaphthalene-1,8-dicarboximide chromophore (ANI), which in turn is attached to a naphthalene-1,4:5,8- bis(dicarboximide) acceptor (NI) to give D-ANI-NI. The relationship between the molecular structure of D^+. and the magnitude of the electronic coupling between the radicals within D^+.-ANI-NI^-. was probed by direct measurements of the spin-spin exchange interaction, 2J, using magnetic field effects on the yield of the neutral triplet state resulting from charge recombination and by density functional theory calculations.

Original language	English (US)
Pages (from-to)	244-249
Number of pages	6
Journal	Chemical Physics Letters
Volume	404
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2005.01.093
State	Published - Mar 21 2005

Funding

This work was supported by the Division of Chemical Sciences, Office of Basic Energy Sciences, U.S. Department of Energy under Grant No. DE-FG02-99ER-14999. E.A.W. thanks the Link Foundation for support. The authors thank Dr. Michael J. Tauber for many helpful discussions.

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/j.cplett.2005.01.093

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title = "Effect of charge delocalization on radical ion pair electronic coupling",

abstract = "Photoinduced charge separation and recombination were studied in a series of covalent donor-acceptor triads consisting of aniline, 1-aminonaphthalene, or 9-aminoanthracene donors (D) attached to a 4-aminonaphthalene-1,8-dicarboximide chromophore (ANI), which in turn is attached to a naphthalene-1,4:5,8- bis(dicarboximide) acceptor (NI) to give D-ANI-NI. The relationship between the molecular structure of D+. and the magnitude of the electronic coupling between the radicals within D+.-ANI-NI-. was probed by direct measurements of the spin-spin exchange interaction, 2J, using magnetic field effects on the yield of the neutral triplet state resulting from charge recombination and by density functional theory calculations.",

author = "Sinks, {Louise E.} and Weiss, {Emily A.} and Giaimo, {Jovan M.} and Wasielewski, {Michael R.}",

note = "Funding Information: This work was supported by the Division of Chemical Sciences, Office of Basic Energy Sciences, U.S. Department of Energy under Grant No. DE-FG02-99ER-14999. E.A.W. thanks the Link Foundation for support. The authors thank Dr. Michael J. Tauber for many helpful discussions.",

year = "2005",

month = mar,

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doi = "10.1016/j.cplett.2005.01.093",

language = "English (US)",

volume = "404",

pages = "244--249",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

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T1 - Effect of charge delocalization on radical ion pair electronic coupling

AU - Sinks, Louise E.

AU - Weiss, Emily A.

AU - Giaimo, Jovan M.

AU - Wasielewski, Michael R.

N1 - Funding Information: This work was supported by the Division of Chemical Sciences, Office of Basic Energy Sciences, U.S. Department of Energy under Grant No. DE-FG02-99ER-14999. E.A.W. thanks the Link Foundation for support. The authors thank Dr. Michael J. Tauber for many helpful discussions.

PY - 2005/3/21

Y1 - 2005/3/21

N2 - Photoinduced charge separation and recombination were studied in a series of covalent donor-acceptor triads consisting of aniline, 1-aminonaphthalene, or 9-aminoanthracene donors (D) attached to a 4-aminonaphthalene-1,8-dicarboximide chromophore (ANI), which in turn is attached to a naphthalene-1,4:5,8- bis(dicarboximide) acceptor (NI) to give D-ANI-NI. The relationship between the molecular structure of D+. and the magnitude of the electronic coupling between the radicals within D+.-ANI-NI-. was probed by direct measurements of the spin-spin exchange interaction, 2J, using magnetic field effects on the yield of the neutral triplet state resulting from charge recombination and by density functional theory calculations.

AB - Photoinduced charge separation and recombination were studied in a series of covalent donor-acceptor triads consisting of aniline, 1-aminonaphthalene, or 9-aminoanthracene donors (D) attached to a 4-aminonaphthalene-1,8-dicarboximide chromophore (ANI), which in turn is attached to a naphthalene-1,4:5,8- bis(dicarboximide) acceptor (NI) to give D-ANI-NI. The relationship between the molecular structure of D+. and the magnitude of the electronic coupling between the radicals within D+.-ANI-NI-. was probed by direct measurements of the spin-spin exchange interaction, 2J, using magnetic field effects on the yield of the neutral triplet state resulting from charge recombination and by density functional theory calculations.

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DO - 10.1016/j.cplett.2005.01.093

M3 - Article

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VL - 404

SP - 244

EP - 249

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

Effect of charge delocalization on radical ion pair electronic coupling

Abstract

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ASJC Scopus subject areas

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