Structure of the Inversion Spectrum of Ammonia

Abstract

Measurements of the fine structure in the ammonia inversion spectrum have been extended into the millimeter wave region to the 16,16 line at 39941 mc/sec. The relative intensities and positions of the lines are compared with calculated values. The hyperfine structures of 15 lines have been measured. A systematic disagreement is shown to exist between the theoretical and observed separations of the hyperfine components. There is good agreement between the observed and calculated intensities of the hyperfine structure.