Inversion-rotation spectrum and spectroscopic parameters of 14ND3 in the ground state |
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Authors: | L Fusina G di Lonardo JWC Johns |
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Institution: | 1. Istituto di Chimica Fisica e Spettroscopia, Viale Risorgimento 4, 40136, Bologna, Italy;2. Istituto di Spettroscopia Molecolare del CNR, Via de'' Castagnoli 1, 40126 Bologna, Italy |
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Abstract: | The far-infrared spectrum of 14ND3 has been recorded in the region between 30 and 220 cm?1 at a resolution, before deconvolution, of approximately 0.004 cm?1. ΔJ = +1, ΔK = 0, a ← s and s ← a inversion-rotation transitions have been measured and assigned up to J″ = 19. These transitions, the pure inversion-microwave transitions and ground-state combination differences from the analysis of the ν2 and ν4 bands have been fitted simultaneously to an inversion-rotational Hamiltonian which includes Δk = ±3 and Δk = ±6 interaction terms. The ground-state spectroscopic parameters obtained in this way reproduce the transition frequencies within the accuracy of the measurements. |
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