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The rotational spectrum of 15N-ammonium chloride vapour: characterisation of the hydrogen-bonded dimer H3N...HCl

โœ Scribed by Elizabeth J. Goodwin; N.W. Howard; A.C. Legon

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
572 KB
Volume
131
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

The rotationat spectra of associated species ("NHs, H35C1) and "NH3, H"C1) have been detected in "N-ammonium chloride vapour by pulsed-nozzle, Fouler-transform microwave spectroscopy. Values of the rotational constant ho, the centrifugat distortion constants i>f and DJK. and the Cl-nuclear quadrupole coupling constant x(C1) have been determined for both species. The spectroscopic constants are interpreted in terms of a hydrogen-bonded dimer HsN...HCl (rather than the ion-pair HqN+Cl-) having C3,, symmetry, with r(N.. .Cl) = 3.1367 A and the hydrogen-bond stretching force constant k, = 18.1 N m-l.

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