Mechano-fluorochromic PtII Luminogen and Its Cysteine Recognition

被引：43

作者：

Chowdhury, Aniket ^{[1
]}

Howlader, Prodip ^{[1
]}

Mukherjee, Partha Sarathi ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Inorgan & Phys Chem, Bangalore 560012, Karnataka, India

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2016年 / 22卷 / 04期

关键词：

coordination compounds; fluorescence; organometallic chemistry; platinum; sensing; AGGREGATION-INDUCED EMISSION; CRYSTALLIZATION-INDUCED EMISSION; REVERSIBLE PHASE-TRANSFORMATION; FLUORESCENT-PROBE; RATIOMETRIC DETECTION; NONLINEAR ABSORPTION; DIIMINE COMPLEXES; LIGHT-EMISSION; LUMINESCENCE; PLATINUM(II);

D O I：

10.1002/chem.201504003

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new triphenylamine-based organometallic Pt-II luminogen (1) and its analogous organic compound (2) are reported. The molecules are decorated with aldehyde functionality to improve their photophysical properties by utilising donor-acceptor interactions. The single crystal X-ray structure analysis of PtII analogue 1 revealed that the neighbouring molecules were loosely organised by weak intermolecular C-H center dot center dot center dot pi interactions. Because of the twisted nature of the triphenylamine backbone the compounds showed aggregation-induced emission enhancement in THF/water mixture. Due to their loose crystal packing, upon application of external stimuli these luminogens exhibited mechano-fluorochromic behaviour. The crystalline forms of the compounds displayed a more superior emission efficiency than the grinded samples. Moreover, the compounds showed crystallization-induced emission enhancement (CIEE) and exhibited chemodosimetric response towards cysteine under physiological condition.

引用

页码：1424 / 1434

页数：11

共 102 条

[1] Luminescence color change of a platinum(II) complex solid upon mechanical grinding [J].