Elizabeth J. Goodwin, N. Howard, A. Legon
1986
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0
Influential Citations
61
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Journal
Chemical Physics Letters
Abstract
Abstract The rotational spectra of associated species (15NH3, H35Cl) and 15NH3, H37Cl) have been detected in 15N-ammonium chloride vapour by pulsed-nozzle, Fourier-transform microwave spectroscopy. Values of the rotational constant B0, the centrifugal distortion constants DJ and DJK, and the Cl-nuclear quadrupole coupling constant χ(Cl) have been determined for both species. The spectroscopic constants are interpreted in terms of a hydrogen-bonded dimer H3N...HCl (rather than the ion-pair H4N+Cl−) having C3v symmetry, with r(N...Cl) = 3.1367 A and the hydrogen-bond stretching force constant kσ = 18.1 Nm−1.