A density functional theory and laser flash photolysis investigation of carbofuran photodegradation in aqueous medium
作者:A. Atifi、M. Talipov、H. Mountacer、M.D. Ryan、M. Sarakha
DOI:10.1016/j.jphotochem.2012.02.018
日期:2012.5
Density functional theory (DFT) approach was used to study the photodegradation of Carbofuran in aqueous medium. This computational method enables us to assign the electronic transitions and interpret the dissociative behavior upon irradiation based on a thermodynamical analysis of the bond dissociation energies (BDE) of Carbofuran. According to these calculations, phenoxy CO bond appears weaker than
密度泛函理论(DFT)方法用于研究呋喃丹在水性介质中的光降解。这种计算方法使我们能够基于对呋喃呋喃的键离解能(BDE)的热力学分析,分配电子跃迁并解释辐照时的离解行为。根据这些计算,苯氧基C O键似乎比C N键弱。因此,据预测,在氨基甲酸酯部分的CO键的初始均质解离下,应发生呋喃呋喃的光降解。激光闪光光解(LFP)结果清楚地表明了苯氧基自由基的形成,这支持了这种理论方法的结果。