FREE JET ABSORPTION MILLIMETER-WAVE SPECTRUM OF PYRROLIDINE - ASSIGNMENT OF A 2ND, EQUATORIAL, THE MOST STABLE CONFORMER

Authors
CAMINATI W DELLERBA A MACCAFERRI G FAVERO PG
Citation
W. Caminati et al., FREE JET ABSORPTION MILLIMETER-WAVE SPECTRUM OF PYRROLIDINE - ASSIGNMENT OF A 2ND, EQUATORIAL, THE MOST STABLE CONFORMER, Journal of molecular spectroscopy (Print), 191(1), 1998, pp. 45-48
Citations number
24
Categorie Soggetti
Spectroscopy,"Physics, Atomic, Molecular & Chemical
Journal title
Journal of molecular spectroscopy (Print) → ACNP
ISSN journal
00222852
Volume
191
Issue
1
Year of publication
1998
Pages
45 - 48
Database
ISI
SICI code
0022-2852(1998)191:1<45:FJAMSO>2.0.ZU;2-B
Abstract
The equatorial conformer of pyrrolidine has been discovered while inve stigating the rotational free jet spectrum of the pyrrolidine-water ad duct. It is more stable than the axial species, previously assigned wi th conventional microwave spectroscopy (W. Caminati, Il. Oberhammer, G . Pfafferott, R. R. Filgueira, and C. H. Gomez, 1984. J. Mel. Spectros c., 106, 217-266). The assignment of the equatorial conformer was miss ed in that microwave investigation because of the accidentally zero or almost zero value of its mu(a) dipole moment component; its low J mu( c)-type transitions, very weak in the room temperature spectrum, are t he strongest lines in the jet. (C) 1998 Academic Press.