摘要
本文报道超音速射流冷却条件下,用同步辐射光研究CH_3Cl光电离及其解离电离的动力学,测得CH_3Cl的电离能(IP)为11.28±0.01eV.通过测定CH_3Cl光解离电离碎片的出现势(AP),并结合有关已确认的热力学数据,获得了它们的标准生成焓、离子型分子中的键能、中性分子或自由基中的键能及母体离子的解离能等热力学数据.对CH_3Cl分子VUV光解离电离通道进行了分析.
The kinetic processes of the photoionization and photodissociation ionization of CH3Cl have been investigated under the supersonic beam conditions using synchrotron radiation. Theionization energy of CH3Cl is 11.28 ± 0.01eV.Based on the measured appearance potential (AP) of the ionic fragments, the related formation enthalpies of the ionic species, the bond dissociation energy (BDE) of ionic and neutral species, and the dissociation energy (DE) of parent ion have been evaluated. The most possible channel of dissociation photoionization were analyzed.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1997年第3期236-241,共6页
Acta Chimica Sinica
基金
国家自然科学基金资助课题
