Ultrasound-Induced Emission Enhancement Based on Structure-Dependent Homo- and Heterochiral Aggregations of Chiral Binuclear Platinum Complexes

被引：157

作者：

Komiya, Naruyoshi ^{[1
]}

Muraoka, Takako ^{[1
]}

Iida, Masayuki ^{[1
]}

Miyanaga, Maiko ^{[1
]}

Takahashi, Koichi ^{[1
]}

Naota, Takeshi ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Dept Chem, Osaka 5608531, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 40期

基金：

日本学术振兴会;

关键词：

EFFECTIVE CORE POTENTIALS; MOLECULAR CALCULATIONS; PHOTOINDUCED GELATION; EXCITATION-ENERGIES; SOLID-STATE; LUMINESCENCE; PHOSPHORESCENT; TRANSITION; CRYSTALS; SWITCH;

D O I：

10.1021/ja2039369

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Instant and precise control of phosphorescent emission can be performed by ultrasound-induced gelation of organic liquids with chiral, clothespin-shaped trans-bis(salicylaldiminato)Pt(II) complexes, anti-1. Nonemissive solutions of racemic, short-linked anti-la (n = 5) and optically pure, long-linked anti-1c (n = 7) in organic liquids are transformed immediately into stable phosphorescent gels upon brief irradiation of low-power ultrasound. Emission from the gels can be controlled by sonication time, linker length, and optical activity of the complexes. Several experimental results indicated that structure-dependent homo- and heterochiral aggregations and ultrasound-control of the aggregate morphology are key factors for emission enhancement.

引用

页码：16054 / 16061

页数：8