14N Quadrupole Coupling Constants in N2O by High-Resolution Microwave Spectroscopy

Abstract

The J=1←0 microwave transition of ¹⁴N₂O has been investigated under high resolution. Analysis of the hyperfine structure has given the values of the quadrupole coupling constants of the two nitrogen nuclei, viz., χ_end=−0.792±0.005 MHz and χ_central=−0.238±0.005 MHz. Spin—rotation energy terms were included, and with the assumption that the spin—rotation constants of the two nuclei were identical, a value of M=−0.003±0.001 MHz was obtained for the spin—rotation constant. These results have been interpreted in terms of other molecular properties.