## Files in this item

FilesDescriptionFormat

application/pdf

4436.pdf (44kB)
AbstractPDF

## Description

 Title: HIGH-RESOLUTION FAR INFRARED SPECTROSCOPY AND ANALYSES OF TRIOXANE Author(s): Richard, Cyril Contributor(s): Asselin, Pierre ; Pirali, Olivier ; Boudon, Vincent Subject(s): Small molecules Abstract: \begin{wrapfigure}{r}{0pt} \includegraphics[scale=0.2]{Trioxane.eps} \end{wrapfigure} Trioxane, (H$_2$CO)$_3$, is a symmetric top that belongs to the $C_{3v}$ symmetry group. The molecule owns 20 fundamental modes that are dispatched as 7 symmetric vibrations of type A1, 3 vibrations of type A2 and 10 doubly degenerate vibrations of type $E$. Infrared spectra of trioxane have been recorded in the 50--650 cm$^{-1}$ range using a high resolution Bruker IFS 125 interferometer located at the AILES beamline of the SOLEIL synchrotron facility. Owing to its higher brilliance in the far-infrared region, the SOLEIL synchrotron radiation was used to improve the signal-to-noise ratio of the spectrum at the maximal resolution of 0.001 cm$^{-1}$. We present here a detailed analysis and modeling of intense OCO deformation $\nu_7$ and $\nu_{19}$ modes as well as weaker CH$_2$ torsion $\nu_{20}$ mode and its first overtone 2$\nu_{20}$. Thanks to the formalism and programs developed in Dijon, we could determine accurately the effective Hamiltonian parameters for these 3 modes. Issue Date: 23-Jun-20 Publisher: International Symposium on Molecular Spectroscopy Citation Info: APS Genre: CONFERENCE PAPER/PRESENTATION Type: Text Language: English URI: http://hdl.handle.net/2142/107366 Date Available in IDEALS: 2020-06-26
﻿