Diode Laser Measurements of CF3Cl Near 783/cm. Rovibrational Analysis of the Upsilon(sub 2) Fundamental

摘要

The rotational structure of the upsilon/sub 2/ band of CF/sub 3/Cl, with natural isotopic abundance, has been investigated using a tunable diode laser spectrometer. The spectra have been obtained for a low temperature sample (about 200 K), to reduce the interfering contributions of hot-band transitions. Due to the very small value of the ( delta A- delta B) constant for both isotopic species, the K-structure of most P(J) and (R(J) multiplets is generally not resolvable. Only for CF3(35)Cl, the K-structure could be resolved for P(J) multiplets with J greater than or equal to 55. Molecular constants for the upsilon/sub 2/ fundamental of both isotopic species have been obtained using least-squares fitting routines in combination with band contour simulations for unresolved K-structure. (Atomindex citation 20:009694)