HIGH-RESOLUTION FTIR STUDY OF THE NU(4)-NU(6) ROVIBRATIONAL BAND OF CH3 BR-79 BETWEEN 4870 AND 5030 CM(-1)(2)

Citation
N. Bensarizizi et C. Alamichel, HIGH-RESOLUTION FTIR STUDY OF THE NU(4)-NU(6) ROVIBRATIONAL BAND OF CH3 BR-79 BETWEEN 4870 AND 5030 CM(-1)(2), Journal of molecular spectroscopy, 186(1), 1997, pp. 34-42
Citations number
19
ISSN journal
00222852
Volume
186
Issue
1
Year of publication
1997
Pages
34 - 42
Database
ISI
SICI code
0022-2852(1997)186:1<34:HFSOTN>2.0.ZU;2-T
Abstract
The nu(4)(+/-1) + 2 nu(6)(0) and nu(4)(-/+1) + 2 nu(6)(+/-2) perpendic ular components and the nu(4)(+/-1) + 2 nu(6)(+/-2) parallel component of the CH3 Br-79 isotopomer have been found and studied in high resol ution (0.006 cm(-1)). Both perpendicular components are linked altoget her and also to the nu(2) + nu(3) + nu(4) band by anharmonic resonance s. A model taking these anharmonic resonances and l(2,2) resonances in to account has been used. It allowed to obtain a r.m.s deviation of 0. 0065 cm(-1) in a least squares fit over 1327 lines (46 being zero-weig hted) belonging to the three components of nu(4) + 2 nu(6) and to the calculated K Delta K = -1 sub-band of nu(2) + nu(3) + nu(4) deduced fr om the corresponding observed sub-band of nu(2) + nu(3) + nu(4) - nu(3 ). (C) 1997 Academic Press.