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用可调谐二极管激光光谱仪观测到3657—3708cm-1区域内CO2各种同位素分子的9个振转谱带。首次观测到12C16O17O的10011—00001谱带和12C16O18O的11111—01101谱带,对其余7个谱带则扩充了其观测振转线的数目。用最小二乘方拟合法计算了各谱带的光谱常数,发现CO2分子常数表中12C16O17O的10011—00001谱带中心v的计算值比本实验观测值大0.287cm-1,而12C16O18O的11111—01101谱带中心v0的计算值则比本实验观测值小0.048cm-1。Nine vibration-rotational bands of various isotopic species of CO2 have been assigned in the 3657-3708 cm-1 region using a tunable diode laser spectrometer. Two of these bands, i.e. the 10011-00001 of 12C16O17 and the 11111-01101 of 12C16O18 were observed for the first time. The now accepted caleulated value of the 10011-00001 band originated from 12C16O17 is found to deviate from our observed value by 0.287 cm-1 and that of the 11111-01101 band originated frorn 12C16O18 by 0.048 cm-1.
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