Singlet oxygen generation by two-photon excitation of porphyrin derivatives having two-photon-absorbing benzothiadiazole chromophores

被引：53

作者：

Ishi-i, Tsutomu

Taguri, Yoshiki

Kato, Shin-ichiro

Shigeiwa, Motoyuki

Gorohmaru, Hideki

Maeda, Shuuichi

Mataka, Shuntaro

机构：

[1] Kurume Natl Coll Technol, Dept Biochem & Appl Chem, Kurume, Fukuoka 8308555, Japan

[2] Kyushu Univ, Inst Mat Chem & Engn IMCE, Kasuga, Fukuoka 8168580, Japan

[3] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan

[4] Mitsubishi Chem Grp Sci & Technol Res Ctr Inc, Aoba Ku, Yokohama, Kanagawa 2278502, Japan

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2007年 / 17卷 / 31期

关键词：

D O I：

10.1039/b704499b

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Porphyrin derivatives with four two-photon absorbing 2,1,3-benzothiadiazole chromophores at the meso positions provide large two-photon absorption cross-sections up to 735 GM as well as large quantum yields of one-photon singlet oxygen sensitization of ca. 0.7, leading to generation of singlet oxygen by two-photon excitation of 800 nm. The two-photon singlet oxygen sensitization is discussed on the basis of a parameter of the normalized oxygen luminescence intensity obtained from the two-photon experiment.

引用

页码：3341 / 3346

页数：6

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