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.
Analysis of the ethyl chloride nu(9) band by means of the assignment of new far infrared laser lines
CARELLI, GIORGIO;STRUMIA, FRANCO
1998-01-01
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
