# 3-BUTENESELENOL: MICROWAVE SPECTRUM AND AB INITIO CALCULATIONS

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/20927

Files Size Format View
2003-RH-09.jpg 195.5Kb JPEG image

 Title: 3-BUTENESELENOL: MICROWAVE SPECTRUM AND AB INITIO CALCULATIONS Creators: Petitprez, D.; Wlodarczak, G.; Demaison, J.; Guillemin, J.- C.; Møllendal, H. Issue Date: 2003 Publisher: Ohio State University Abstract: 3-Buteneselenol $H_{2}C=CHCH_{2}CH_{2}SeH$ was investigated by microwave Fourier transform ($5-20$ GHz) and microwave Stark (24-62 GHz) spectroscopies. The spectra look rather complex due to the large number of possible conformers (15) and the number of isotopic species for selenium (6). Moreover in the Stark spectra the low-lying excited states are also detected. Quantum mechanical calculations ($G_{2}$ method at the $MP_{2}$ and $B_{3}LYP$ levels of theory) were carried to precise the relative energies of all these conformers. Their geometrical structures, centrifugal distortion constants and dipole moments were also calculated, leading to the identification of the three more stable conformers. The most stable conformer exhibits an intramolecular hydrogen bond involving the selenium atom. Description: Author Institution: Laboratoire PhLAM, UMR CNRS 8523, Universit\'{e} de Lille 1; Laboratoire PhLAM, UMR CNRS 8523, Laboratoire de Synth\`{e}se et Activation de Biomol\'{e}cules; Department of Chemistry, The University of Oslo URI: http://hdl.handle.net/1811/20927 Other Identifiers: 2003-RH-09