A highly selective turn-on sensor for Hg2+ based on a phosphorescent iridium (III) complex

作者：Mei, Qunbo^*; Shi, Yujie; Chen, Chen; Hua, Qingfang; Tong, Bihai^*

来源：Inorganic Chemistry Communications, 2016, 73: 147-151.

DOI：10.1016/j.inoche.2016.10.002

• Iridium (III) complex
• Benzothiazole derivatives
• Phosphorescent chemosensor
• Hg2+

A highly selective phosphorescent chemosensor for Hg2+ based on the iridium (III) complex Ir(DTBT)(2)(acac) (DTBT = 2-(5-(1,2 dihydroacenaphthylen-5-yl)thiophen-2-yl)benzothiazole, acac = acetylacetone) was synthesized and characterized. Ir(DTBT)(2)(acac) exhibited relatively weak fluorescenceat at about 700 nm. Ir(DTBT)(2)(acac) displayed a dramatic color change from near-infrared to yellow-green with the addition of Hg2+. More significantly, the chemosensor performed "turn-on" phosphorescent responses toward Hg2+.

• 出版日期2016-11
• 单位南京邮电大学; 安徽工业大学