醛类自氧化振荡反应动力学的研究  

Research on the Autoxidation Oscillating Reaction of Aldehydes

作　　者：宋学煜 张义学[1] 焦念欣 崔建霞[1] 杨小平[1] 尚振锋[1] 马克勤[1] 赵鸿喜[1] 臧雅茹[1] 赵学庄[1] 

机构地区：[1]南开大学化学系,美国加州理工学院化学系

出　　处：《高等学校化学学报》1994年第6期840-844,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金;国家教委博士点专项基金

摘　　要：研究了醛类在乙酸和水混合溶剂中以Ｃｏ^（２＋）和Ｂｒ~－为催化剂的自氧化振荡反应．得知某些取代苯甲醛和脂肪醛在适当条件下能发生振荡，并研究了苯甲醛、正丁醛和乙醛的周期受动力学制约的影响，提出了相关的机理模型．依此模型以Ｇｅａｒ方法计算其振荡周期基本与实验结果相符．The autoxidation oscillating reaction of aldehydes in the mixed solvent of acetic acid and water(V/V=9:1)with the catalyts of Co(2+)and Br-as been studied.We found that the autoxidation of some substituted benzaldehydes and many aliphatic aldehydes could oscillate under proper conditions.We studied the effect of kinetic constraints of benzaldehyde,butyraldehyde and acetaldehyde on the period of oscillation in detail.The relativemechanism involving 14 elementary reactions,is proposed as shown in Table 2.According to this model,the oscillating periods calculated by Gear's method are in the main accordance with the experimental results.

关 键 词：化学振荡 醛 自氧化 反应动力学 

分 类 号：O622.4[理学—有机化学]