Exceptional Intersystem Crossing in Di(perylene bisimide)s: A Structural Platform toward Photosensitizers for Singlet Oxygen Generation

被引：102

作者：

Wu, Yishi ^{[1
]}

Zhen, Yonggang ^{[1
]}

Ma, Yuchao ^{[1
]}

Zheng, Renhui ^{[1
]}

Wang, Zhaohui ^{[1
]}

Fu, Hongbing ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2010年 / 1卷 / 17期

基金：

中国国家自然科学基金;

关键词：

TRIPLET EXCITED-STATE; PHOTODYNAMIC THERAPY; PERYLENE BISIMIDE; CHARGE-TRANSFER; DYES; POLYMERS;

D O I：

10.1021/jz1008328

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：

Photosensitized reactions of molecular oxygen have found far-reaching applications in various fields, and the development of new photosensitizer compounds is of crucial importance. We here describe a new class of triply linked bay fused diperylene bisimides (DiPBIs) which exhibited several unique features, rendering them a new structural platform for the development of highly efficient and photostable photosensitizers. (i) The extended pi-conjugation shifts its absorption into the body's therapeutic window. (ii) The nonplanarity of the distorted cores enhances the spin-orbit coupled intersystem crossing. (iii) The long-lasting high-energy T-1 state facilitates singlet oxygen generation via energy-transfer reaction between T-1 and ground-state oxygen.

引用

页码：2499 / 2502

页数：4

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