氯代酚中O—H键解离能的脉冲激光光声微量量热测定  

Study on the O—H Bond Dissociation Energies in Chlorophenols by Pulsed Laser Photoacoustic Calorimetry

作　　者：杨俊林[1] 简华华[1] 郑广霖[1] 徐广智[1] 

机构地区：[1]中国科学院化学研究所

出　　处：《分析测试学报》1998年第5期1-4,共4页Journal of Instrumental Analysis

基　　金：国家自然科学基金

摘　　要：利用脉冲激光光声微量量热技术测定出二特丁基过氧化物［（ｔ＿ＢｕＯ）２］光解量子产率Φ，及（ｔ＿ＢｕＯ）２与５种氯代酚光化夺氢反应过程的热效应，并结合热力学计算出了５种氯代酚中的Ｏ—Ｈ键解离能。The quantum yield ( Φ ) for photolysis of ( t _BuO) 2 and heat effects in the abstraction reaction of hydrogen for ( t _BuO) 2 with five Cl n C 6H 5- n OH were determined by pulsed laser photoacoustic calorimetry technique. By combination of those results with literature data for the heats of formation of t _BuOH, ( t _BuO) 2 and H, the dissociation bond energies of O—H in Cl n C 6H 5- n OH were calculated.

关 键 词：降解 解离能 氯化酚 氢氧键 光化夺氢反应 

分 类 号：O625.33[理学—有机化学] X131[理学—化学]