化学
肟
乐果
检出限
荧光
加合物
分子
杀虫剂
光化学
色谱法
有机化学
物理
量子力学
农学
生物
作者
Ian M. Walton,Marauo Davis,Lyndsay Munro,Vincent J. Catalano,Peter J. Cragg,Michael T. Huggins,Karl J. Wallace
出处
期刊:Organic Letters
[American Chemical Society]
日期:2012-05-18
卷期号:14 (11): 2686-2689
被引量:76
摘要
An N,N-carbonyl-bridged dipyrrinone oxime has been synthesized and studied as a potential sensor for organophosphates. The molecular sensor underwent a drastic colorimetric response upon formation of the adduct. The pesticide dimethoate was found to produce the biggest spectral response, with a limit of detection equal to 4.0 ppm using UV–visible spectroscopy. Minimal fluorescence “turn on” via a PET mechanism was seen, and molecular modeling studies were used to explain the lower than expected PET response. The X-ray crystal structure of the fluorescent dipyrrinone oxime was also obtained.
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