The Stark Effect of the Ammonia Inversion Spectrum

Abstract

A detailed study of the Stark effect of certain transitions in the inversion spectrum of ammonia has been made. The hyperfine structure due to quadrupole and electric field effects is in agreement with theory. The value 1.468\ifmmode\pm\else\textpm\fi{}0.009D has been obtained for the dipole moment. Consideration has been given to possible second-order effects; their influence is shown to be negligible.