NO_2分子5个新振动带的转动结构分析  

THE ROTATIONAL ANALYSES OF THE FIVE NEW VIBRONIC BANDS OF NO_2 AT ROOM TEMPERATURE

作　　者：杨锐[1] 陈东[2] 凤尔银[1] 季学韩[1] 崔执凤[1] 周士康[3] 

机构地区：[1]安徽师范大学物理系光谱与材料研究室,安徽芜湖241000 [2]安徽工业大学自动化系,安徽马鞍山240032 [3]中国科学院安徽光学精密机械研究所激光光谱开放实验室,安徽合肥230031

出　　处：《安徽师范大学学报（自然科学版）》2002年第3期232-236,共5页Journal of Anhui Normal University(Natural Science)

基　　金：国家教育部骨干教师基金资助项目(GG -70 2 -10 3 70 -1866);安徽省教育厅自然科学基金资助项目

摘　　要：确定了室温下NO2 分子在 5 2 4 - 5 2 9.5nm区域的 5个新振动带 ,并分析了每个振动带的转动结构 ,确定了这些带的带源、转动常数以及旋 -转耦合常数等分子常数 ,实验结果表明 ,所有得到转动标识的谱线均属于平行跃迁 。Using the dye laser pumped by the excimer laser, the high-resolution fluorescence excitation spectrum was measured in the region 524-529.5nm at room temperature.We determined the molecular constants such as band origins and rotational and spin-rotation constants for 5 new vibronic bands in the region. It was shown from the experiment that all rotational structures analyzed are of the parallel type, and there are strong interactions between the electronic excited state A～ 2B 2 and the high lying vibration levels of ground state X～ 2A 1.

关 键 词：NO2分子 振动带 转动结构 分子常数 二氧化氮 电子基态 电子激发态 振动能级 

分 类 号：O561.1[理学—原子与分子物理]