Perturbation of electronic states and energy relaxation dynamics in a series of phenylene bridged Zn-II porphyrin dimers
SCIE
SCOPUS
- Title
- Perturbation of electronic states and energy relaxation dynamics in a series of phenylene bridged Zn-II porphyrin dimers
- Authors
- Cho, S; Yoon, MC; Kim, CH; Aratani, N; Mori, G; Joo, T; Osuka, A; Kim, D
- Date Issued
- 2007-10-11
- Publisher
- AMER CHEMICAL SOC
- Abstract
- We have investigated the perturbed electronic states and energy relaxation dynamics of a series of phenylene bridged Zn-II porphyrin dimers to reveal the effects of phenylene bridges by using computational and time-resolved spectroscopic methods. The electronic states of Zn-II porphyrin 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.
- Keywords
- DENSITY-FUNCTIONAL THEORY; LIGHT-HARVESTING COMPLEX; EXCITATION TRANSFER; ZINC TETRAPHENYLPORPHYRIN; PHOTOPHYSICAL PROPERTIES; FLUORESCENCE ANISOTROPY; RHODOBACTER-SPHAEROIDES; EXCITONIC INTERACTIONS; DENDRITIC PORPHYRIN; ULTRAFAST DYNAMICS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/23146
- DOI
- 10.1021/JP068522+
- ISSN
- 1932-7447
- Article Type
- Article
- Citation
- JOURNAL OF PHYSICAL CHEMISTRY C, vol. 111, no. 40, page. 14881 - 14888, 2007-10-11
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