Hannover 2016 – wissenschaftliches Programm
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MO: Fachverband Molekülphysik
MO 8: Experimental Techniques
MO 8.8: Vortrag
Dienstag, 1. März 2016, 12:45–13:00, f142
High resolution IR-spectroscopy based on Synchrotron radiation — •Pia Kutzer1, Olivier Pirali2, and Thomas Giesen1 — 1Universität Kassel, Institut für Physik, Heinrich-Plett Str. 40, D-34132 — 2Société civile Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin - BP 48, F-91192 Gif Sur Yvette Cedex
The AILES beam line at SOLEIL Synchrotron facility is dedicated to a spectral range between 8 and 1500 cm−1 with a maximum resolution of 0.0008 cm−1. Together with a multi-pass White cell this allows high resolution Fourier transform spectroscopy with a long absorption pathlength up to 150 m with a very sufficient sensitivity.
This spectrometer is very useful for studies on stable molecules like eg. Dimethyl-Ether (DME) as well as for instable radicals. Especially its use for investigation of astrophysical molecules is of relevance in the interpretation of astrophysical spectra.
Here we present our results on astrophysically relevant DME isotopologues as well as on Tert-buthyl-Phosphor-di-Bromide (PBr-tBu) a chiral molecule which has been studied for the first time by means of spectroscopy.
We recorded first infrared broadband spectra of PBr-tBu in the region of 100 cm−1 to 650 cm−1 at AILES beamline and also high resolution broadband spectra of singly and doubly 13C substituted DME in the region of 70 cm−1 to 500 cm−1.
Here we show our results on the vibrational bands of PBr-tBu and also on the C-O-C bending mode of DME isotopologues.