The structure of NH3*H2S and free internal rotation effects

Article abstract of DOI:10.1063/1.459618

The structure of NH3*H2S has been determined from microwave and radiofrequency spectroscopy of this complex and its deuterated isotopomers, using molecular beam electric resonance techniques.Rotational constants, electric dipole moments and nitrogen quadrupole coupling constants were obtained from the spectra.The molecule was found to have a linear, hydrogen bonded structure with the ammonia as the proton acceptor.The N<*>S distance is 3.639 Angstroem, the root-mean-square angular deviation of the NH3 axis from the N-S axis is 24.6 deg and the H2S C2 axis is 40.5 deg from the N-S axis.Although the molecule is an asymmetric rotor, first-order Stark effects were observed for K = 1 rotational levels.These Stark effects are caused by torsional oscillations which are essentially ammonia monomer free internal rotation.Similar effects were observed for NH3*H2O and are reported here.

Full text of DOI:10.1063/1.459618

The structure of NH3H2S and free internal rotation effects
Peter Herbine, T. A. Hu, G. Johnson, and T. R. Dyke
Citation: The Journal of Chemical Physics 93, 5485 (1990); doi: 10.1063/1.459618
View online: http://dx.doi.org/10.1063/1.459618
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/93/8?ver=pdfcov
Published by the AIP Publishing
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