锌(II)卟啉-自由碱基卟啉二聚体中的超交换介导能量转移：m-和 p-位双（苯乙炔基）苯连接二聚体的比较。
Superexchange mediated energy transfer in zinc(II) porphyrin-free base porphyrin dimers: comparison of m- and p-bis(phenylethynyl) phenylene linked dimers.
机构信息
Department of Chemistry, Tokyo Metropolitan University, 1-1, Minami-Ohsawa, Hachi-Ohji, Tokyo 192-0397, Japan.
出版信息
Phys Chem Chem Phys. 2011 Jul 28;13(28):12712-5. doi: 10.1039/c1cp20539k. Epub 2011 Jun 20.
PMID:21687879
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.
摘要
在具有 m-双（苯乙炔基）苯桥的新型锌（II）卟啉-自由碱卟啉二聚体中，发现单重态-单重态能量转移速率比相应的 p-双（苯乙炔基）苯桥二聚体慢，尽管供体-受体距离和途径更短。较慢的速率被解释为超交换机制的主要贡献的证据。
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