𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Self-Broadening and Linestrength in the ν2and ν5Bands of CH3F

✍ Scribed by Benoit Lance; Muriel Lepère; Ghislain Blanquet; Jacques Walrand; Jean-Pierre Bouanich

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
268 KB
Volume
180
Category
Article
ISSN
0022-2852

No coin nor oath required. For personal study only.

✦ Synopsis

The self-broadening coefficients and the linestrengths of 30 lines in the n 2 and n 5 fundamental bands of CH 3 F have been measured at high resolution in the range 1417-1553 cm 01 , using a tunable diode-laser spectrometer. The lineshape parameters were obtained by fitting noncorrelated Galatry and Rautian profiles to the measured shapes of the lines. Both models show good agreement between the self-broadening coefficients derived from the spectra at ''low'' pressure (0.4 to 3 mbar) and those recorded at ''high'' pressure (6 to 18 mbar), but feature an overestimation of the dynamical friction parameter. A semiclassical calculation of the self-broadening coefficients, performed by using the main electrostatic interactions only, has provided larger results than the experimental data.

📜 SIMILAR VOLUMES

The ν1+ν3 and the ν1+ν2+ν41+ν5−1 Combina
The ν1+ν3 and the ν1+ν2+ν41+ν5−1 Combination Bands of 13C2H2. Linestrengths, Broadening Parameters, and Pressure Shifts
✍ Mitsuhiro Kusaba; Jes Henningsen 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 259 KB

The ν 1 + ν 3 and the ν 1 + ν 2 + ν 1 4 + ν -1 5 combination bands of 13 C 2 H 2 at 6521.9 and 6535.1 cm -1 , respectively, are studied with diode laser spectroscopy. Line center wavelengths have been determined with 0.00012-nm standard uncertainty up to J = 40 for ν 1 + ν 3 and up to J = 25 for ν 1

Self- and Air-Broadening in the ν1and ν3
Self- and Air-Broadening in the ν1and ν3Bands of H2S
✍ B. Sumpf; I. Meusel; H.-D. Kronfeldt 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 103 KB

The collisional line broadening of H 2 S transitions in the n 1 and n 3 bands was measured with H 2 S itself and with air as perturbers by applying a diode laser spectrometer in pulsed mode. Altogether 17 lines from the R-branch of the n 1 band (3 £ J Љ £ 17, 0 £ K Љ a £ 6) and 5 lines from the R-br

Diode-Laser Measurements of N2-Broadenin
Diode-Laser Measurements of N2-Broadening Coefficients in the ν2and ν5Bands of12CH3F
✍ Muriel Lepère; Ghislain Blanquet; Jacques Walrand; Jean-Pierre Bouanich 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 220 KB

branches of the n 5 perpendicular band, using a tunable diode-laser spectrometer. The lines with J values ranging from 3 to 27, and K from 0 to 6 (K £ J), are located in the spectral range 1416-1553 cm 01 . The collisional widths obtained by fitting Rautian profiles to the measured shape of the line

Noble Gas Induced Pressure Broadening in
Noble Gas Induced Pressure Broadening in the ν3, ν2+ ν3− ν2, and 2ν2Bands of NO2
✍ B. Sumpf; V.V. Pustogov; H.-D. Kronfeldt 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 130 KB

Experimental results on the pressure broadening of NO 2 for collisions with the noble gases He, Ne, Ar, Kr, and Xe are presented. The broadening coefficients of six lines in the n 3 band near 1616.85 cm 01 with quantum numbers 2 £ N Љ £ 44, 1 £ K Љ a £ 5, and of seven lines in the n 2 / n 3 0 n 2 ba

Absolute Absorption Intensities in the F
Absolute Absorption Intensities in the Fundamental ν2and ν5Bands of12CH3F
✍ Muriel Lepère; Ghislain Blanquet; Jacques Walrand; Ginette Tarrago 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 312 KB

The absolute strengths of 93 lines belonging to the nu2 and nu5 bands of methyl fluoride were measured in the range of 1416-1503 cm-1 using a tunable diode-laser (TDL) spectrometer. These experimental line intensities were obtained from the equivalent width method. The intensities were analyzed with