Stark Effect and Hyperfine Splitting for Near‐Degenerate Levels of an Asymmetric Rotor. Application to NO2Cl and NOBr

摘要

An approximate method is presented for calculating the Stark effect and hyperfine splitting of near‐degenerate rotational levels of an asymmetric‐top molecule. This method has been used to calculate the Stark effects for the 21→30transition of NO2Cl and the 11→20transition of NOBr. The results are compared with the measured spectra and are found to agree within experimental error. The dipole moments obtained are mgr; = 0.53 D for NO2Cl and mgr;a= 1.80 D for NOBr. The component mgr;bfor NOBr cannot be determined from the spectrum.