Ten new FIR laser lines have been recently observed in C2H5Cl. We assign them to absorptions in the A-type v(9) band of C2H5 Cl-35. From their assignment we could identify some more absorption lines in the high resolution optoacoustic spectrum of this molecule, obtained using CO2 lasers with a tunability of 1 GHz around each line. The theoretical analysis of the spectrum has been extended from J(max) = 23 to J(max) = 64. Further improvements need a better knowledge of the centrifugal coefficients in the fundamental vibrational level. We also give new values of the molecular constants of C2H5 Cl-35 in the excited vibrational level. (C) 1998 Published by Elsevier Science B.V.
|Autori:||Marchetti S; Simili R; Carelli G; Moretti A; Strumia F|
|Titolo:||Analysis of the ethyl chloride nu(9) band by means of the assignment of new far infrared laser lines|
|Anno del prodotto:||1998|
|Digital Object Identifier (DOI):||10.1016/S1350-4495(97)00053-4|
|Appare nelle tipologie:||1.1 Articolo in rivista|