Dynamics of photoinduced charge transfer and hole transport in synthetic DNA hairpins

F. D. Lewis; R. L. Letsinger; M. R. Wasielewski

doi:10.1021/ar0000197

Dynamics of photoinduced charge transfer and hole transport in synthetic DNA hairpins

F. D. Lewis^*, R. L. Letsinger, M. R. Wasielewski

^*Corresponding author for this work

Chemistry

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

524 Scopus citations

Abstract

The dynamics of photoinduced charge separation and charge recombination processes in synthetic DNA hairpins have been investigated by means of femtosecond transient absorption spectroscopy. The driving force and distance dependence of charge-transfer processes involving singlet acceptors and nucleobase donors are consistent with a single-step superexchange mechanism in which the electronic coupling between the donor and acceptor is strongly distance dependent. The dynamics of reversible hole transport between a primary guanine donor and nearby GG or GGG sequences has also been determined and establishes that these sequences are very shallow hole traps.

Original language	English (US)
Pages (from-to)	159-170
Number of pages	12
Journal	Accounts of chemical research
Volume	34
Issue number	2
DOIs	https://doi.org/10.1021/ar0000197
State	Published - Mar 3 2001

ASJC Scopus subject areas

Chemistry(all)

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abstract = "The dynamics of photoinduced charge separation and charge recombination processes in synthetic DNA hairpins have been investigated by means of femtosecond transient absorption spectroscopy. The driving force and distance dependence of charge-transfer processes involving singlet acceptors and nucleobase donors are consistent with a single-step superexchange mechanism in which the electronic coupling between the donor and acceptor is strongly distance dependent. The dynamics of reversible hole transport between a primary guanine donor and nearby GG or GGG sequences has also been determined and establishes that these sequences are very shallow hole traps.",

author = "Lewis, {F. D.} and Letsinger, {R. L.} and Wasielewski, {M. R.}",

year = "2001",

month = mar,

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doi = "10.1021/ar0000197",

language = "English (US)",

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pages = "159--170",

journal = "Accounts of Chemical Research",

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AU - Lewis, F. D.

AU - Letsinger, R. L.

AU - Wasielewski, M. R.

PY - 2001/3/3

Y1 - 2001/3/3

N2 - The dynamics of photoinduced charge separation and charge recombination processes in synthetic DNA hairpins have been investigated by means of femtosecond transient absorption spectroscopy. The driving force and distance dependence of charge-transfer processes involving singlet acceptors and nucleobase donors are consistent with a single-step superexchange mechanism in which the electronic coupling between the donor and acceptor is strongly distance dependent. The dynamics of reversible hole transport between a primary guanine donor and nearby GG or GGG sequences has also been determined and establishes that these sequences are very shallow hole traps.

AB - The dynamics of photoinduced charge separation and charge recombination processes in synthetic DNA hairpins have been investigated by means of femtosecond transient absorption spectroscopy. The driving force and distance dependence of charge-transfer processes involving singlet acceptors and nucleobase donors are consistent with a single-step superexchange mechanism in which the electronic coupling between the donor and acceptor is strongly distance dependent. The dynamics of reversible hole transport between a primary guanine donor and nearby GG or GGG sequences has also been determined and establishes that these sequences are very shallow hole traps.

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JF - Accounts of Chemical Research

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ER -

Dynamics of photoinduced charge transfer and hole transport in synthetic DNA hairpins

Abstract

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