CAJ | 학술논문

在285 nm紫外激光辐照下,用时间分辨电子自旋共振(TRESR)波谱仪研究了对苯醌/乙二醇(PBQ/EG)体系,得到了发射的苯半醌中性自由基PBQH(.)和乙二醇碳自由基R(.)(OH)2的CIDEP谱.在化学诱导动态电子极化(CIDEP)基本原理的基础上,建立合理的计算模型,编写相应的程序,对PBQH(.)和R(.)(OH)2的CIDEP形成机理进行了定量的解析.通过对不同延时下该体系各种自由基及不同机理成分的对比,明显看出由RPM形成的PBQH(.)比由TM形成的PBQH(.)衰减快.这种分析方法可以推广应用于其它体系的CIDEP实验谱的解析.
재285 nm자외격광복조하,용시간분변전자자선공진(TRESR)파보의연구료대분곤/을이순(PBQ/EG)체계,득도료발사적분반곤중성자유기PBQH(.)화을이순탄자유기R(.)(OH)2적CIDEP보.재화학유도동태전자겁화(CIDEP)기본원리적기출상,건립합리적계산모형,편사상응적정서,대PBQH(.)화R(.)(OH)2적CIDEP형성궤리진행료정량적해석.통과대불동연시하해체계각충자유기급불동궤리성분적대비,명현간출유RPM형성적PBQH(.)비유TM형성적PBQH(.)쇠감쾌.저충분석방법가이추엄응용우기타체계적CIDEP실험보적해석.
The CIDEP spectrum of p-benzosemiquinone/ethylene glycol (PBQ/EG) system has been obtained experimentally with the time-resolved ESR spectrometer by using 285 nm laser photolysis. The emission lines from PBQH(.) and R(.) (OH)2 in this system were measured. Based on the basic CIDEP theory, the CIDEP spectrum of this system was stimulated and the experimental spectrum was quantitatively analyzed.Comparing the stimulated spectrum with the experimental one at different time delay, We conclude that PBQH(.) produced from RPM decays slower than PBQH(.) generated from TM and this method can be applied to analyze the experimental CIDEP spectral structure in other system.