Perturbation of electronic states and energy relaxation dynamics in a series of phenylene bridged ZnII porphyrin dimers

Sung Cho, Min Chul Yoon, Chul Hoon Kim, Naoki Aratani, Goro Mori, Taiha Joo, Atsuhiro Osuka, Dongho Kim

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We have investigated the perturbed electronic states and energy relaxation dynamics of a series of phenylene bridged ZnIIorphyrin dimers to reveal the effects of phenylene bridges by using computational and time-resolved spectroscopic methods. The electronic states of ZnIIorphyrin dimers are largely perturbed by the interchromophore interactions that can be controlled by the phenylene bridges; linking position and number of phenyl rings. On the basis of our observations, we can gain further insight into the dipole-dipole interactions and through-bond/through-space electronic exchange interactions between the neighboring porphyrin moieties, which provides a firm basis for further understanding the modification of photophysical properties caused by the phenylene bridge in multiporphyrin assemblies as artificial light-harvesting apparatus.

Original languageEnglish
Pages (from-to)14881-14888
Number of pages8
JournalJournal of Physical Chemistry C
Volume111
Issue number40
DOIs
Publication statusPublished - 2007 Oct 11

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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