摘要
实验测定了室温下NO2 分子在 5 19～ 5 2 4nm区域的高分辨激光诱导荧光激发谱 ,标识了 2 5个振动带 ,并作了转动分析 ,确定了这些带的带源、转动常数以及旋 转偶合常数等分子常数 ,其中有 8个振动带是新发现的 ,对振动带的转动结构分析表明 ,所有得到转动标识的谱线均属于平行跃迁2 B2 - ～X2 A1,其中上振动能级具有B2 对称类是由于电子激发态 ～A2 B2 与电子基态的振动能级之间的强烈相互作用所致。
The high resolution fluorescence excitation spectrum was measured in the region 519～524 nm at room temperature. Though the spectrum is rather congested, we determined the molecular constants such as band origins and rotational and spin rotation constants for 25 vibronic bands in the this region. Among the vibronic bands assigned there were 8 new bands reported firstly. All rotational structures analyzed are of the parallel type. It was shown from the experiment that the high lying vibration levels of ground state AX～U6 2A 1 heavily perturbed the electronic excited state AA～U6 2B 2 .
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
2001年第2期153-158,共6页
Journal of Atomic and Molecular Physics
基金
国家自然科学基金! (2 98730 5 1)
安徽师范大学专项基金&&
