硅烷泛频态v=6的高分辨光声光谱  

The High Resolution Photoacoustic Spectrum of Silane v = 6 Overtones

作　　者：韩家祥[1] 郝绿原[1] 张竞辉 王效刚[1] 朱清时[1] 

机构地区：[1]中国科技大学选键化学开放研究实验室,合肥230026

出　　处：《Chinese Journal of Chemical Physics》1999年第6期651-658,共8页化学物理学报（英文）

基　　金：国家自然科学基金

摘　　要：结合光学长程和声学共振两种技术，显著提高了激光光声光谱仪的探测灵敏度，用此装置记录了硅烷分子ｖ＝６的高泛频光谱．与激光腔内吸收技术相比，分辨率明显提高，记录到更多的光谱线．用基态能级并合差的方法得到了在１２０５０－１２１９０ｃｍ－１内三个谱带的振转能级，并对其能级结构和受到的微扰进行了分析．The detection sensitivity of the laser photoacoustic spectrometer was greahy improvedby using acoustic resonance and optical multipled techniques.The spectrum of silane v =6overtones was recorded on this apparatus. The evolution of this spectrum was higher than thatobserved by means of intlacavity laser absorption spectrometer, and more new lines wereobserved. The vibration--rotational energy levels of tabs upper stabal in the region of 12050- 12190cm-1 have ho obtained, the energy level smicture and the pertuxbation have been analyzed.

关 键 词：光声光谱 硅烷 FERMI共振 振转能级 振转光谱 

分 类 号：O627.41[理学—有机化学] O561.3[理学—化学]