The rotational spectrum of benzonitrile: Experimental and theoretical determination of the quartic centrifugal distortion constants

The mm-Wave Rotational Spectrum of CBrClF2(Halon BCF): Observation of a NewR-Type Band and Generalization of Conditions for Oblate-Type Band Formation

“…ͪ 2C [9] leads to values of n eff consistent with those derived numerically. At the oblate limit the value of n eff is equal to the provides a satisfactory estimate of the rotational constant band generator n, and increases with decrease of k from /1.…”

“…In fact numerical derivation of values of n eff There is one more useful relationship that can be derived, necessary for maximum convergence of bands for a given which takes account of the departure of the optimum condiband generator n at values of k as low as 00.9 showed that tion for band convergence from (A / B) Å n(2C) for molecua simple scaling of Eq. [9] into the form lar asymmetry which is not close to the oblate symmetric top limit. For the n Å 2 bands it was found that the relationship…”

Assignment and Analysis of the mm-Wave Rotational Spectrum of Trichloroethylene: Observation of a New, ExtendedbR-Band and an Overview of High-J,R-Type Bands

“…Measurements are reported for for D J to d k , respectively. The very good agreement with the final constants in Table 2 confirms our previous experia very broad range of R-type transitions, with JЉ from 21 to 145, and for several Q branches, mainly for KЉ 01 from 31 ence (5,7), stimulated by the results of other authors (13,14), of the utility of ab initio estimates of quartic distortion to 39. The frequencies with the largest cited errors were the first to be measured, and are the result of video measure-constants for small size molecules.…”

A b i n i t i o and experimental quartic centrifugal distortion constants of acetone, pyrazole, and γ-pyrone

“…The formulas used for the calculations may be found in Ref. 9. As expected this correction is negligibly small.…”