Measurement of hyperfine structure of the J=3, K=2 inversion line of N14H3

The magnetic hyperfine structure of the J=3, K=2 inversion line of N14H3 has been measured in a maser spectrometer employing the method of separated oscillating fields. The molecular-resonance linewidth of this system is 350 cps at 23 kMc/sec. The measured frequencies of the 3-2 inversion-line components are (in cycles/sec): 22 834 247 980±50, 22 834 209 990±50, 22,834,207,230±50, 22 834 185 130±20, 22 834 163 020±50, 22 834 160 270±50, 22 834 122 270±50. The pairs of lines adjacent to the main line were unresolved previously.