Excitation-energy migration in self-assembled cyclic zinc(II)-porphyrin arrays: A close mimicry of a natural light-harvesting system

In Wook Hwang; Mira Park; Tae Kyu Ahn; Zin Seok Yoon; Dah Mee Ko; Dongho Kim; Fuyuki Ito; Yukihide Ishibashi; Sazzadur R. Khan; Yutaka Nagasawa; Hiroshi Miyasaka; Chusaku Ikeda; Ryoichi Takahashi; Kazuya Ogawa; Akiharu Satake; Yoshiaki Kobuke

doi:10.1002/chem.200500069

Excitation-energy migration in self-assembled cyclic zinc(II)-porphyrin arrays: A close mimicry of a natural light-harvesting system

In Wook Hwang
, Mira Park
, Tae Kyu Ahn
, Zin Seok Yoon
, Dah Mee Ko
, Dongho Kim
, Fuyuki Ito
, Yukihide Ishibashi
, Sazzadur R. Khan
, Yutaka Nagasawa
, Hiroshi Miyasaka
, Chusaku Ikeda
, Ryoichi Takahashi
, Kazuya Ogawa
, Akiharu Satake
, Yoshiaki Kobuke

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

89 Scopus citations

Abstract

The excitation-energy-hopping (EEH) times within two-dimensional cyclic zinc(II)-porphyrin arrays 5 and 6, which were prepared by intermolecular coordination and ring-closing metathesis reaction of olefins, were deduced by modeling the EEH process based on the anisotropy depolarization as well as the exciton-exciton annihilation dynamics. Assuming the number of energy-hopping sites N=5 and 6, the two different experimental observables, that is, anisotropy depolarization and exciton-excition annihilation times, consistently give the EEH times of 8.0 ±0.5 and 5.3±0.6ps through the 1,3-phenylene linkages of 5 and 6, respectively. Accordingly, the self-assembled cyclic porphyrin arrays have proven to be well-defined two-dimensional models for natural light-harvesting complexes.

Original language	English
Pages (from-to)	3753-3761
Number of pages	9
Journal	Chemistry - A European Journal
Volume	11
Issue number	12
DOIs	https://doi.org/10.1002/chem.200500069
State	Published - 6 Jun 2005
Externally published	Yes

Keywords

Energy transfer
Femtosecond transient absorption
Fluorescence spectroscopy
Polarization anisotropy
Porphyrinoias

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10.1002/chem.200500069

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Hwang, I. W., Park, M., Ahn, T. K., Yoon, Z. S., Ko, D. M., Kim, D., Ito, F., Ishibashi, Y., Khan, S. R., Nagasawa, Y., Miyasaka, H., Ikeda, C., Takahashi, R., Ogawa, K., Satake, A., & Kobuke, Y. (2005). Excitation-energy migration in self-assembled cyclic zinc(II)-porphyrin arrays: A close mimicry of a natural light-harvesting system. Chemistry - A European Journal, 11(12), 3753-3761. https://doi.org/10.1002/chem.200500069

@article{28e77391a510471abcb27dafdf72c536,

title = "Excitation-energy migration in self-assembled cyclic zinc(II)-porphyrin arrays: A close mimicry of a natural light-harvesting system",

abstract = "The excitation-energy-hopping (EEH) times within two-dimensional cyclic zinc(II)-porphyrin arrays 5 and 6, which were prepared by intermolecular coordination and ring-closing metathesis reaction of olefins, were deduced by modeling the EEH process based on the anisotropy depolarization as well as the exciton-exciton annihilation dynamics. Assuming the number of energy-hopping sites N=5 and 6, the two different experimental observables, that is, anisotropy depolarization and exciton-excition annihilation times, consistently give the EEH times of 8.0 ±0.5 and 5.3±0.6ps through the 1,3-phenylene linkages of 5 and 6, respectively. Accordingly, the self-assembled cyclic porphyrin arrays have proven to be well-defined two-dimensional models for natural light-harvesting complexes.",

keywords = "Energy transfer, Femtosecond transient absorption, Fluorescence spectroscopy, Polarization anisotropy, Porphyrinoias",

author = "Hwang, \{In Wook\} and Mira Park and Ahn, \{Tae Kyu\} and Yoon, \{Zin Seok\} and Ko, \{Dah Mee\} and Dongho Kim and Fuyuki Ito and Yukihide Ishibashi and Khan, \{Sazzadur R.\} and Yutaka Nagasawa and Hiroshi Miyasaka and Chusaku Ikeda and Ryoichi Takahashi and Kazuya Ogawa and Akiharu Satake and Yoshiaki Kobuke",

year = "2005",

month = jun,

day = "6",

doi = "10.1002/chem.200500069",

language = "English",

volume = "11",

pages = "3753--3761",

journal = "Chemistry - A European Journal",

issn = "0947-6539",

publisher = "John Wiley and Sons Inc",

number = "12",

}

Hwang, IW, Park, M, Ahn, TK, Yoon, ZS, Ko, DM, Kim, D, Ito, F, Ishibashi, Y, Khan, SR, Nagasawa, Y, Miyasaka, H, Ikeda, C, Takahashi, R, Ogawa, K, Satake, A & Kobuke, Y 2005, 'Excitation-energy migration in self-assembled cyclic zinc(II)-porphyrin arrays: A close mimicry of a natural light-harvesting system', Chemistry - A European Journal, vol. 11, no. 12, pp. 3753-3761. https://doi.org/10.1002/chem.200500069

TY - JOUR

T1 - Excitation-energy migration in self-assembled cyclic zinc(II)-porphyrin arrays

T2 - A close mimicry of a natural light-harvesting system

AU - Hwang, In Wook

AU - Park, Mira

AU - Ahn, Tae Kyu

AU - Yoon, Zin Seok

AU - Ko, Dah Mee

AU - Kim, Dongho

AU - Ito, Fuyuki

AU - Ishibashi, Yukihide

AU - Khan, Sazzadur R.

AU - Nagasawa, Yutaka

AU - Miyasaka, Hiroshi

AU - Ikeda, Chusaku

AU - Takahashi, Ryoichi

AU - Ogawa, Kazuya

AU - Satake, Akiharu

AU - Kobuke, Yoshiaki

PY - 2005/6/6

Y1 - 2005/6/6

N2 - The excitation-energy-hopping (EEH) times within two-dimensional cyclic zinc(II)-porphyrin arrays 5 and 6, which were prepared by intermolecular coordination and ring-closing metathesis reaction of olefins, were deduced by modeling the EEH process based on the anisotropy depolarization as well as the exciton-exciton annihilation dynamics. Assuming the number of energy-hopping sites N=5 and 6, the two different experimental observables, that is, anisotropy depolarization and exciton-excition annihilation times, consistently give the EEH times of 8.0 ±0.5 and 5.3±0.6ps through the 1,3-phenylene linkages of 5 and 6, respectively. Accordingly, the self-assembled cyclic porphyrin arrays have proven to be well-defined two-dimensional models for natural light-harvesting complexes.

AB - The excitation-energy-hopping (EEH) times within two-dimensional cyclic zinc(II)-porphyrin arrays 5 and 6, which were prepared by intermolecular coordination and ring-closing metathesis reaction of olefins, were deduced by modeling the EEH process based on the anisotropy depolarization as well as the exciton-exciton annihilation dynamics. Assuming the number of energy-hopping sites N=5 and 6, the two different experimental observables, that is, anisotropy depolarization and exciton-excition annihilation times, consistently give the EEH times of 8.0 ±0.5 and 5.3±0.6ps through the 1,3-phenylene linkages of 5 and 6, respectively. Accordingly, the self-assembled cyclic porphyrin arrays have proven to be well-defined two-dimensional models for natural light-harvesting complexes.

KW - Energy transfer

KW - Femtosecond transient absorption

KW - Fluorescence spectroscopy

KW - Polarization anisotropy

KW - Porphyrinoias

UR - https://www.scopus.com/pages/publications/20444453367

U2 - 10.1002/chem.200500069

DO - 10.1002/chem.200500069

M3 - Article

C2 - 15827988

AN - SCOPUS:20444453367

SN - 0947-6539

VL - 11

SP - 3753

EP - 3761

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 12

ER -

Excitation-energy migration in self-assembled cyclic zinc(II)-porphyrin arrays: A close mimicry of a natural light-harvesting system

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Keywords

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