Energy relaxation dynamics of excited triplet states of directly linked Zn(II)porphyrin arrays

Nam Woong Song; Hyun Sun Cho; Min Chul Yoon; Naoki Aratani; Atsuhiro Osuka; Dongho Kim

doi:10.5012/bkcs.2002.23.2.271

Energy relaxation dynamics of excited triplet states of directly linked Zn(II)porphyrin arrays

Nam Woong Song, Hyun Sun Cho, Min Chul Yoon, Naoki Aratani, Atsuhiro Osuka, Dongho Kim

Department of Chemistry

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

16 Citations (Scopus)

Abstract

The energy relaxation dynamics of the lowest excited singlet and triplet states of the zn(II)porphyrin monomer and its directly linked arrays were comparatively investigated with increasing the number of porphyrin moieties. While the fluorescence decay rates and quantum yields of the porphyrin arrays increased with the increase of porphyrin units, their triplet-triplet (T-T) absorption spectra and decay times remained almost the same. The difference in the trends of energy relaxation dynamics between the excited singlet and triplet states has been discussed in view of the electronic orbital configurations.

Original language	English
Pages (from-to)	271-276
Number of pages	6
Journal	Bulletin of the Korean Chemical Society
Volume	23
Issue number	2
DOIs	https://doi.org/10.5012/bkcs.2002.23.2.271
Publication status	Published - 2002 Feb 20

All Science Journal Classification (ASJC) codes

Chemistry(all)

Access to Document

10.5012/bkcs.2002.23.2.271

Cite this

@article{d272ef1807934902a02c60df7b9ee147,

title = "Energy relaxation dynamics of excited triplet states of directly linked Zn(II)porphyrin arrays",

abstract = "The energy relaxation dynamics of the lowest excited singlet and triplet states of the zn(II)porphyrin monomer and its directly linked arrays were comparatively investigated with increasing the number of porphyrin moieties. While the fluorescence decay rates and quantum yields of the porphyrin arrays increased with the increase of porphyrin units, their triplet-triplet (T-T) absorption spectra and decay times remained almost the same. The difference in the trends of energy relaxation dynamics between the excited singlet and triplet states has been discussed in view of the electronic orbital configurations.",

author = "Song, {Nam Woong} and Cho, {Hyun Sun} and Yoon, {Min Chul} and Naoki Aratani and Atsuhiro Osuka and Dongho Kim",

year = "2002",

month = feb,

day = "20",

doi = "10.5012/bkcs.2002.23.2.271",

language = "English",

volume = "23",

pages = "271--276",

journal = "Bulletin of the Korean Chemical Society",

issn = "0253-2964",

publisher = "Korean Chemical Society",

number = "2",

}

TY - JOUR

T1 - Energy relaxation dynamics of excited triplet states of directly linked Zn(II)porphyrin arrays

AU - Song, Nam Woong

AU - Cho, Hyun Sun

AU - Yoon, Min Chul

AU - Aratani, Naoki

AU - Osuka, Atsuhiro

AU - Kim, Dongho

PY - 2002/2/20

Y1 - 2002/2/20

N2 - The energy relaxation dynamics of the lowest excited singlet and triplet states of the zn(II)porphyrin monomer and its directly linked arrays were comparatively investigated with increasing the number of porphyrin moieties. While the fluorescence decay rates and quantum yields of the porphyrin arrays increased with the increase of porphyrin units, their triplet-triplet (T-T) absorption spectra and decay times remained almost the same. The difference in the trends of energy relaxation dynamics between the excited singlet and triplet states has been discussed in view of the electronic orbital configurations.

AB - The energy relaxation dynamics of the lowest excited singlet and triplet states of the zn(II)porphyrin monomer and its directly linked arrays were comparatively investigated with increasing the number of porphyrin moieties. While the fluorescence decay rates and quantum yields of the porphyrin arrays increased with the increase of porphyrin units, their triplet-triplet (T-T) absorption spectra and decay times remained almost the same. The difference in the trends of energy relaxation dynamics between the excited singlet and triplet states has been discussed in view of the electronic orbital configurations.

UR - http://www.scopus.com/inward/record.url?scp=0037138931&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037138931&partnerID=8YFLogxK

U2 - 10.5012/bkcs.2002.23.2.271

DO - 10.5012/bkcs.2002.23.2.271

M3 - Article

AN - SCOPUS:0037138931

SN - 0253-2964

VL - 23

SP - 271

EP - 276

JO - Bulletin of the Korean Chemical Society

JF - Bulletin of the Korean Chemical Society

IS - 2

ER -

Energy relaxation dynamics of excited triplet states of directly linked Zn(II)porphyrin arrays

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this