6533b821fe1ef96bd127c04f

RESEARCH PRODUCT

Line intensities of CH3D in the Triad region: 6–10μm

L. FéjardLinda R. BrownRobert L. SamsM. A. H. SmithAndrei NikitinV. Malathy DeviVl.g. TyuterevD. Chris BennerJean-paul Champion

subject

Absorption spectroscopyChemistryOrganic ChemistryFourier transform spectrometersAnalytical chemistrySpectral responseTriad (anatomy)Spectral lineAnalytical ChemistryInorganic Chemistrymedicine.anatomical_structuremedicineMoleculeAbsorption (electromagnetic radiation)SpectroscopyLine (formation)

description

Abstract Line intensities of the three lowest fundamentals of the 12CH3D Triad are modeled with an RMS of 3.2% using over 2100 observed values retrieved by multispectrum fitting of enriched sample spectra recorded with two Fourier transform spectrometers. The band strengths of the Triad in units of 10−18 cm−1/(molecule cm−2) at 296 K are, respectively, 2.33 for ν6 (E) at 1161 cm−1, 1.75 for ν3 (A1) at 1307 cm−1 and 0.571 for ν5 (E) at 1472 cm−1. The total calculated absorption arising from 12CH3D Triad fundamentals is 4.65×10−18 cm−1/(molecule cm−2) at 296 K. In addition, some 740 intensities of nine hotbands are fitted to 8.1%; most of the hotband measurements belong to 2ν6−ν6 and ν3+ν6−ν3 near 1160 cm−1, 2ν3−ν3 near 1290 cm−1 and ν3+ν6−ν6 near 1304 cm−1. The other observed hotbands are ν5+ν6−ν6, 2ν5−ν5, ν5+ν6−ν5, ν3+ν5−ν3, and ν3+ν5−ν5.

yearjournalcountryeditionlanguage
2004-06-01Journal of Molecular Structure
https://doi.org/10.1016/j.molstruc.2003.12.041