【摘要】 用高分辨二极管激光光谱仪对乙炔v₅区域的几个Q支作了研究.在725cm^-1附近观察到（2v₄+v₅）I-2v₄的Q支.并对（2v₅-v₅）和（v₄+v₅）-v₄的Q支进行了观察.观测到一些微扰现象.对观测到的谱线利用最小二乘法进行了拟合,得到了部分分子常数.更多还原

【Abstract】 This artical presents the high resolution study of several Q branches of acetylene in region of v5 band by means of a diode laser spectrometer. The Q branch of (2v4+ v5)I-2v4 band next to 725cm-1 has been observed for the first time. The (v4+v5) -v4 and 2v5-v5 Q branches have been investigated. Some effects of perturbation have been observed. The obtained lines have been least-squares fitted and molecular constants have been obtained.更多还原