𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The H2S Spectrum around 0.7 μm

✍ Scribed by J.-M. Flaud; O. Vaittinen; A. Campargue


Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
187 KB
Volume
190
Category
Article
ISSN
0022-2852

No coin nor oath required. For personal study only.

✦ Synopsis


The overtone spectrum of H2S has been recorded by intracavity laser spectroscopy in the 14100-14400 cm-1 spectral region. The rovibrational analysis was performed allowing one to assign not only lines involving the pair of interacting states {(402), (303)} ({(60(+), 0), (60(-), 0)} in local mode notation), but also lines involving the interacting states {(322), (223)} ({50(+), 2), (50(-), 2)} in local mode notation). Indeed, apart from the strong H22 interactions that link the rotational levels of the states (60(+/-), 0) on the one hand, and the rotational levels of the states (50(+), 2) on the other hand, we observe that the rotational levels of the two pairs of states interact strongly through anharmonic and Coriolis-type resonances. These resonances transfer intensity to lines involving the (50(+), 2) pair of states. Altogether 80 rotational upper-state levels have been observed and reproduced satisfactorily using an Hamiltonian matrix that takes explicitly into account the various interactions and assumes the same vibrational energy and rotational constants for the two components of the local mode pairs. The following band centers have been obtained: nu0 (60(+), 0) = 14291.122 cm-1 and nu0 (50(+/-), 2) = 14284.705 cm-1. Finally a local mode-type behavior is evidenced by the values of the Hamiltonian constants, and refined vibrational local mode parameters are obtained. Copyright 1998 Academic Press.


📜 SIMILAR VOLUMES


The ν2 Bands of BrNO2 around 787 cm−1 (1
✍ F.Kwabia Tchana; J. Orphal; I. Kleiner; B. Redlich; D. Scheffler; R. Mbiake; O. 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 143 KB

The ν 2 fundamental bands of 79 BrNO 2 and 81 BrNO 2 , located around 787 cm -1 (12.7 µm), were recorded using a highresolution Fourier-transform infrared spectrometer. A total of nearly 5000 transitions with J ≤ 80 and K a ≤ 30 were reproduced using a Watson-type A-reduced Hamiltonian with a root-m

High-Resolution Fourier Transform Spectr
✍ O.N. Ulenikov; Shui-Ming Hu; E.S. Bekhtereva; G.A. Onopenko; Sheng-Gui He; Xiang 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 104 KB

The high-resolution Fourier transform spectrum of the D 2 O molecule were recorded and analyzed in the region near 0.97 µm (10 200-10 440 cm -1 ) where the bands of the v = 4 (v = v 1 + v 2 /2 + v 3 ) polyad are located. Transitions belonging to the strongest band of the polyad, 3ν 1 + ν 3 , are ass

Local Mode Effects on the High-Resolutio
✍ Olavi Vaittinen; Ludovic Biennier; Alain Campargue; Jean-Marie Flaud; Lauri Halo 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 457 KB

## THIS PAPER IS DEDICATED TO DR. HANS BU ¨RGER ON THE OCCASION OF HIS 60TH BIRTHDAY The overtone spectrum of H 2 S has been studied by intracavity laser absorption spectroscopy in the wavenumber region 12 270-12 670 cm 01 . The rovibrational analysis has provided upper state rotational parameters