Abstract book - Prof. Per Jensen, Ph.D. - Bergische Universität ...

Poster session, D18 65A New Study of 2 4 band of PF 3 moleculeby High Resolution Infrared SpectroscopyT. Sahdane 1 , M. Badaoui 1, 2 and M. Rotger 31Département de Physique. Laboratoire SMOIL, Faculté des Sciences, UniversitéMohammed V- Agdal, Rabat, Morocco, sahdane.taoufik@gmail.com; 2 DépartementDSFA, Unité de physique, Institut Agronomique et Vétérinaire Hassan II, B.P. 6240,10101 Madinat Al Irfane, RABAT, Morocco, mohamed.badaoui@gmail.com; 3 Groupede Spectrométrie Moléculaire et Atmosphérique, UMR CNRS 7331, Université deReims, Moulin de la Housse, BP 1039, F-51687 Reims Cedex, France,maud.rotger@univ-reims.frSahdane T.Badaoui M.Rotger M.In previous work [1], the v 4 =2 state of PF 3 molecule was studied using two highresolution ( 310 -3 cm -1 ) infrared spectra. In the 14 m region, 1166 lines of the2parallel component 2 were assigned but the perpendicular component 2 was not042observed. By deducing 198 energy levels of 2 2 14from the hot band 2 4 4,identified among hot bands of 4 around 28 m, it was possible to determine theparameters of v 4 =2 state with a good standard deviation of 0.2413 10 -3 cm -1 .Considering microwave, millimetre and radiofrequency data within the v 4 = 1 excitedlevel [2], new analyse of 4 allowed to assign 595 new infrared transitions extending therotational quantum numbers up to k max = 66 and J max = 67 [3]. This study has yieldedmore precise rotational ground state C 0 , significantly improved old parameters of 4 [4]and determined new ones.2As mentioned before, 2 perpendicular component of 2 4 overtone is derived fromthe hot band 2 24 414, hence the opportunity is offered to us to improve theparameters of v 4 =2 state. Reinvestigation of the corresponding two spectra,and 2 24 14(28 m), and computing are under process.4024(14 m)References[1] M. Badaoui, N Ben Sari-Zizi, H. Najib and G. Graner, J. Mol. Spectrosc. 184 (1997)318-329[2] E. Thiesen, J. Cosléou, P. Dréan, H. Harder, H. Mäder, L. Margulès, K. Sarka, U.Wötzel, J. Mol. Struct. 517-518 (2000) 91-103.[3] Hisham Msahal, Hamid Najib, Siham Hmimou, J. Mol. Spectrosc. 264 (2010) 37-42[4] H. Najib and N. Ben Sari-Zizi, H. Bürger and A. Rahner, and L. Halonen, J. Mol.Spectrosc. 159 (1993) 249-258