Ultrafast photoinduced electron transfer reactions in supramolecular arrays: From charge separation and storage to molecular switches

Michael R. Wasielewski; Michael P. O'Neil; David Gosztola; Mark P. Niemczyk; Walter A. Svec

doi:10.1351/pac199264091319

Ultrafast photoinduced electron transfer reactions in supramolecular arrays: From charge separation and storage to molecular switches

Michael R. Wasielewski, Michael P. O'Neil, David Gosztola, Mark P. Niemczyk, Walter A. Svec

Chemistry

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

28 Scopus citations

Abstract

Photochemical electron transfer reactions on a picosecond time scale have been studied in two covalently-linked donor-acceptor systems. The first molecule is a chlorophyll-porphyrin-quinone triad that closely mimics photosynthetic charge separation by undergoing picosecond electron transfer in low temperature glasses to yield a radical ion pair that lives for 2 ms and exhibits spin-polarization. The second molecule is an electron donor-acceptor-donor molecule, consisting of two porphyrin donors rigidly attached to opposite ends of the two-electron acceptor N,N’-diphenyl-3,4,9,10-perylenebis(dicarboximide). This molecule acts as a light intensity dependent molecular switch on a picosecond time scale.

Original language	English (US)
Pages (from-to)	1319-1325
Number of pages	7
Journal	Pure and Applied Chemistry
Volume	64
Issue number	9
DOIs	https://doi.org/10.1351/pac199264091319
State	Published - Jan 1 1992

Funding

This work was supported by the Exploratory Research Fund of ANL and the Divisions of Chemical Sciences and Advanced Energy Projects, Office of Basic Energy Sciences, U. S. Department of Energy under contract W-31-109-Eng-38.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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title = "Ultrafast photoinduced electron transfer reactions in supramolecular arrays: From charge separation and storage to molecular switches",

abstract = "Photochemical electron transfer reactions on a picosecond time scale have been studied in two covalently-linked donor-acceptor systems. The first molecule is a chlorophyll-porphyrin-quinone triad that closely mimics photosynthetic charge separation by undergoing picosecond electron transfer in low temperature glasses to yield a radical ion pair that lives for 2 ms and exhibits spin-polarization. The second molecule is an electron donor-acceptor-donor molecule, consisting of two porphyrin donors rigidly attached to opposite ends of the two-electron acceptor N,N{\textquoteright}-diphenyl-3,4,9,10-perylenebis(dicarboximide). This molecule acts as a light intensity dependent molecular switch on a picosecond time scale.",

author = "Wasielewski, {Michael R.} and O'Neil, {Michael P.} and David Gosztola and Niemczyk, {Mark P.} and Svec, {Walter A.}",

note = "Funding Information: This work was supported by the Exploratory Research Fund of ANL and the Divisions of Chemical Sciences and Advanced Energy Projects, Office of Basic Energy Sciences, U. S. Department of Energy under contract W-31-109-Eng-38.",

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AU - O'Neil, Michael P.

AU - Gosztola, David

AU - Niemczyk, Mark P.

AU - Svec, Walter A.

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Y1 - 1992/1/1

N2 - Photochemical electron transfer reactions on a picosecond time scale have been studied in two covalently-linked donor-acceptor systems. The first molecule is a chlorophyll-porphyrin-quinone triad that closely mimics photosynthetic charge separation by undergoing picosecond electron transfer in low temperature glasses to yield a radical ion pair that lives for 2 ms and exhibits spin-polarization. The second molecule is an electron donor-acceptor-donor molecule, consisting of two porphyrin donors rigidly attached to opposite ends of the two-electron acceptor N,N’-diphenyl-3,4,9,10-perylenebis(dicarboximide). This molecule acts as a light intensity dependent molecular switch on a picosecond time scale.

AB - Photochemical electron transfer reactions on a picosecond time scale have been studied in two covalently-linked donor-acceptor systems. The first molecule is a chlorophyll-porphyrin-quinone triad that closely mimics photosynthetic charge separation by undergoing picosecond electron transfer in low temperature glasses to yield a radical ion pair that lives for 2 ms and exhibits spin-polarization. The second molecule is an electron donor-acceptor-donor molecule, consisting of two porphyrin donors rigidly attached to opposite ends of the two-electron acceptor N,N’-diphenyl-3,4,9,10-perylenebis(dicarboximide). This molecule acts as a light intensity dependent molecular switch on a picosecond time scale.

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Ultrafast photoinduced electron transfer reactions in supramolecular arrays: From charge separation and storage to molecular switches

Abstract

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ASJC Scopus subject areas

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