The v 2=1 inversional dependence of the rotational g-tensors in 14NH3, 15NH3, and 15ND3

摘要: The ΔMj =±1 mm-wave Zeeman spectra of the (v 2, J, K)=(1+, 1) ← (1−, 1, ro-inversional transitions 14NH3 and 15NH3, a series K) → (1+, inversion 15ND3, at fields near 2·6T, are reported. level g-factors, referred to nuclear magneton, g(1+, 1)=0·5771(20), g(1−, 1)=0·5419(40) for 15NH3 2g(1+, −g(1−, 1)= 0·6119(30) 14NH3. 15ND3 field splittings obey standard rigid-rotor rules, leading g ⊥/1‡=0·2946(11) ‖/1‡=0·2523(6) excited-state g-tensor elements. ground-state is redetermined be ⊥/0‡=0·5654(7), ‖/0‡= 0·5024(5). data analysed in terms rotating rigid-bender model, fitted three electronic parameters. Results show nuclear-electronic uncoupling with increasing v whereas coupling predicted 2≧3, around perpendicular axis. As by-product, K=3 (4, 3) (5, signals were resolved first time.