Photoinduced electron transfer in supramolecular assemblies of transition metal complexes

Itamar Willner; Evgeny Kaganer; Ernesto Joselevich; Heinz Dürr; Elke David; Maxwell J. Günter; Martin R. Johnston

doi:10.1016/s0010-8545(98)90041-8

Photoinduced electron transfer in supramolecular assemblies of transition metal complexes

Itamar Willner, Evgeny Kaganer, Ernesto Joselevich, Heinz Dürr, Elke David, Maxwell J. Günter, Martin R. Johnston

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

39 Citations (Scopus)

Abstract

Photoinduced electron transfer in supramolecular assemblies consisting of π-donor dialkoxyarene-functionalized photosensitizers and bipyridinium electron acceptors is examined. The photosensitizers include Ru(II)-tris-bipyridine complexes tethered by multi-branch one- shell and two-shell dialkoxybenzene π-donor sites or a Zn(II)-porphyrin capped by a dialkoxybenzene receptor site. The photosensitizer/electron-acceptor supramolecular complexes behave as non-covalent diads and polyads. Effective internal electron transfer quenching within the supramolecular assemblies proceeds. A quantitative model that accounts for the photoinduced electron transfer in the systems is formulated.

Original language	English
Pages (from-to)	261-285
Number of pages	25
Journal	Coordination Chemistry Reviews
Volume	171
Issue number	1
DOIs	https://doi.org/10.1016/s0010-8545(98)90041-8
Publication status	Published - Apr 1998
Externally published	Yes

Keywords

Donor-acceptor complexes
Photo-induced electron transfer
Photosensitizers
Polypyridines
Ru(II-complexes)
Supramolecular photochemistry

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title = "Photoinduced electron transfer in supramolecular assemblies of transition metal complexes",

abstract = "Photoinduced electron transfer in supramolecular assemblies consisting of π-donor dialkoxyarene-functionalized photosensitizers and bipyridinium electron acceptors is examined. The photosensitizers include Ru(II)-tris-bipyridine complexes tethered by multi-branch one- shell and two-shell dialkoxybenzene π-donor sites or a Zn(II)-porphyrin capped by a dialkoxybenzene receptor site. The photosensitizer/electron-acceptor supramolecular complexes behave as non-covalent diads and polyads. Effective internal electron transfer quenching within the supramolecular assemblies proceeds. A quantitative model that accounts for the photoinduced electron transfer in the systems is formulated.",

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AU - Willner, Itamar

AU - Kaganer, Evgeny

AU - Joselevich, Ernesto

AU - Dürr, Heinz

AU - David, Elke

AU - Günter, Maxwell J.

AU - Johnston, Martin R.

PY - 1998/4

Y1 - 1998/4

N2 - Photoinduced electron transfer in supramolecular assemblies consisting of π-donor dialkoxyarene-functionalized photosensitizers and bipyridinium electron acceptors is examined. The photosensitizers include Ru(II)-tris-bipyridine complexes tethered by multi-branch one- shell and two-shell dialkoxybenzene π-donor sites or a Zn(II)-porphyrin capped by a dialkoxybenzene receptor site. The photosensitizer/electron-acceptor supramolecular complexes behave as non-covalent diads and polyads. Effective internal electron transfer quenching within the supramolecular assemblies proceeds. A quantitative model that accounts for the photoinduced electron transfer in the systems is formulated.

AB - Photoinduced electron transfer in supramolecular assemblies consisting of π-donor dialkoxyarene-functionalized photosensitizers and bipyridinium electron acceptors is examined. The photosensitizers include Ru(II)-tris-bipyridine complexes tethered by multi-branch one- shell and two-shell dialkoxybenzene π-donor sites or a Zn(II)-porphyrin capped by a dialkoxybenzene receptor site. The photosensitizer/electron-acceptor supramolecular complexes behave as non-covalent diads and polyads. Effective internal electron transfer quenching within the supramolecular assemblies proceeds. A quantitative model that accounts for the photoinduced electron transfer in the systems is formulated.

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KW - Photo-induced electron transfer

KW - Photosensitizers

KW - Polypyridines

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KW - Supramolecular photochemistry

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Photoinduced electron transfer in supramolecular assemblies of transition metal complexes

Abstract

Keywords

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