一种简单的铱(III)二聚体作为开关型荧光化学传感器，用于水样中二硫化碳的检测。
A simple iridium(III) dimer as a switch-on luminescent chemosensor for carbon disulfide detection in water samples.
机构信息
School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou, China; Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China.
Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong SAR, China.
出版信息
Anal Chim Acta. 2019 Nov 20;1083:166-171. doi: 10.1016/j.aca.2019.07.070. Epub 2019 Aug 2.
A series of iridium(III) dimers were synthesized and their ability to interact with diethyldithiocarbamate for CS sensing was evaluated. Upon the addition of CS, diethylamine can capture CS to form diethyldithiocarbamate, which could chelate with the iridium(III) dimer to form a diethyldithiocarbamate iridium(III) complex, resulting in a yellow luminescence. Dimer 8 exhibited a maximum 18-fold of luminescence enhancement upon the addition of CS. The luminescence signal of the detection system could be readily distinguished from the highly fluorescent media using time-resolved emission spectroscopy (TRES). The capability of the system to determine CS level in water samples was also demonstrated.
合成了一系列铱（III）二聚体，并评估了它们与二乙基二硫代氨基甲酸盐相互作用以进行 CS 传感的能力。当加入 CS 时，二乙胺可以捕获 CS 形成二乙基二硫代氨基甲酸盐，后者可以与铱（III）二聚体螯合形成二乙基二硫代氨基甲酸盐铱（III）配合物，从而产生黄色发光。当加入 CS 时，二聚体 8 的发光增强了最大 18 倍。使用时间分辨发射光谱法（TRES）可以很容易地将检测系统的发光信号与高荧光介质区分开来。该系统测定水样中 CS 水平的能力也得到了证明。
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