Photoinduced electron transfer in π-donor-capped Zn(II) porphyrins and N,N′-dimethyl-4,4′-bipyridinium supramolecular assemblies

Evgeny Kaganer; Ernesto Joselevich; Itamar Willner; Zhangpin Chen; Maxwell J. Gunter; Throne P. Gayness; Martin R. Johnson

doi:10.1021/jp973069a

Photoinduced electron transfer in π-donor-capped Zn(II) porphyrins and N,N′-dimethyl-4,4′-bipyridinium supramolecular assemblies

Evgeny Kaganer
, Ernesto Joselevich
, Itamar Willner^*
, Zhangpin Chen
, Maxwell J. Gunter
, Throne P. Gayness
, Martin R. Johnson

^*Corresponding author for this work

Institute of Chemistry

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

33 Scopus citations

Abstract

π-Donor-polyoxyethylene-capped Zn(II)-porphyrins, 1-3, form supramolecular complexes with N,N′-dimethyl-4,4′-bipyridinium, MV²⁺, 4. The association constants of the resulting adducts are 8 × 10⁴, 1 × 10⁴, and 1 × 10³ M^-1, respectively. The Zn(II)-porphyrins are quenched by MV²⁺ by two complementary routes that include internal electron-transfer quenching in the supramolecular complexes and diffusional electron-transfer quenching of the free chromophore.

Original language	English
Pages (from-to)	1159-1165
Number of pages	7
Journal	Journal of Physical Chemistry B
Volume	102
Issue number	7
DOIs	https://doi.org/10.1021/jp973069a
State	Published - 12 Feb 1998

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title = "Photoinduced electron transfer in π-donor-capped Zn(II) porphyrins and N,N′-dimethyl-4,4′-bipyridinium supramolecular assemblies",

abstract = "π-Donor-polyoxyethylene-capped Zn(II)-porphyrins, 1-3, form supramolecular complexes with N,N′-dimethyl-4,4′-bipyridinium, MV2+, 4. The association constants of the resulting adducts are 8 × 104, 1 × 104, and 1 × 103 M-1, respectively. The Zn(II)-porphyrins are quenched by MV2+ by two complementary routes that include internal electron-transfer quenching in the supramolecular complexes and diffusional electron-transfer quenching of the free chromophore.",

author = "Evgeny Kaganer and Ernesto Joselevich and Itamar Willner and Zhangpin Chen and Gunter, \{Maxwell J.\} and Gayness, \{Throne P.\} and Johnson, \{Martin R.\}",

year = "1998",

month = feb,

day = "12",

doi = "10.1021/jp973069a",

language = "אנגלית",

volume = "102",

pages = "1159--1165",

journal = "Journal of Physical Chemistry B",

issn = "1520-6106",

publisher = "American Chemical Society",

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T1 - Photoinduced electron transfer in π-donor-capped Zn(II) porphyrins and N,N′-dimethyl-4,4′-bipyridinium supramolecular assemblies

AU - Kaganer, Evgeny

AU - Joselevich, Ernesto

AU - Willner, Itamar

AU - Chen, Zhangpin

AU - Gunter, Maxwell J.

AU - Gayness, Throne P.

AU - Johnson, Martin R.

PY - 1998/2/12

Y1 - 1998/2/12

N2 - π-Donor-polyoxyethylene-capped Zn(II)-porphyrins, 1-3, form supramolecular complexes with N,N′-dimethyl-4,4′-bipyridinium, MV2+, 4. The association constants of the resulting adducts are 8 × 104, 1 × 104, and 1 × 103 M-1, respectively. The Zn(II)-porphyrins are quenched by MV2+ by two complementary routes that include internal electron-transfer quenching in the supramolecular complexes and diffusional electron-transfer quenching of the free chromophore.

AB - π-Donor-polyoxyethylene-capped Zn(II)-porphyrins, 1-3, form supramolecular complexes with N,N′-dimethyl-4,4′-bipyridinium, MV2+, 4. The association constants of the resulting adducts are 8 × 104, 1 × 104, and 1 × 103 M-1, respectively. The Zn(II)-porphyrins are quenched by MV2+ by two complementary routes that include internal electron-transfer quenching in the supramolecular complexes and diffusional electron-transfer quenching of the free chromophore.

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DO - 10.1021/jp973069a

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AN - SCOPUS:0032002147

SN - 1520-6106

VL - 102

SP - 1159

EP - 1165

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 7

ER -

Photoinduced electron transfer in π-donor-capped Zn(II) porphyrins and N,N′-dimethyl-4,4′-bipyridinium supramolecular assemblies

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