Issue 28, 2011
From the journal:

Physical Chemistry Chemical Physics

Superexchange mediated energy transfer in zinc(ii) porphyrin–free base porphyrin dimers: comparison of m- and p-bis(phenylethynyl) phenylene linked dimers†

Motoko S. Asano,*a   Ken-ichi Yamashita,a   Masato Kitabayashi,a   Kazuki Kusama,a   Daichi Kagotaa  and  Ken-ichi Sugiura*a  

* Corresponding authors

a Department of Chemistry, Tokyo Metropolitan University, 1-1, Minami-Ohsawa, Hachi-Ohji, Tokyo 192-0397, Japan
E-mail: motoko@tmu.ac.jp, sugiura@porphyrin.jp
Fax: +81-42-677-2525
Tel: +81-42-677-2549

Abstract

The singlet–singlet energy transfer rate in a new zinc(II) porphyrin–free base porphyrin dimer, having a m-bis(phenylethynyl)phenylene bridge, was found to be slower than that in the corresponding p-bis(phenylethynyl)phenylene-bridged dimer, despite the shorter donor–acceptor distance and pathway. The slower rate is interpreted as evidence for a major contribution of the superexchange mechanism.

Graphical abstract: Superexchange mediated energy transfer in zinc(ii) porphyrin–free base porphyrin dimers: comparison of m- and p-bis(phenylethynyl) phenylene linked dimers

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Article information

DOI
https://doi.org/10.1039/C1CP20539K
Article type
Communication
Submitted
28 Feb 2011
Accepted
02 Jun 2011
First published
20 Jun 2011

Phys. Chem. Chem. Phys., 2011,13, 12712-12715

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Superexchange mediated energy transfer in zinc(II) porphyrin–free base porphyrin dimers: comparison of m- and p-bis(phenylethynyl) phenylene linked dimers

M. S. Asano, K. Yamashita, M. Kitabayashi, K. Kusama, D. Kagota and K. Sugiura, Phys. Chem. Chem. Phys., 2011, 13, 12712 DOI: 10.1039/C1CP20539K

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