OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

The Knowledge Bank is scheduled for regular maintenance on Sunday, April 20th, 8:00 am to 12:00 pm EDT. During this time users will not be able to register, login, or submit content.

ELECTRONIC SPECTROSCOPY OF THE JET-COOLED HPC1 FREE RADICAL

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/21083

Show full item record

Files Size Format View
2003-WF-06.jpg 216.8Kb JPEG image Thumbnail of ELECTRONIC SPECTROSCOPY OF THE JET-COOLED HPC1 FREE RADICAL

Title: ELECTRONIC SPECTROSCOPY OF THE JET-COOLED HPC1 FREE RADICAL
Creators: Tackett, Brandon S.; He, Sheng-Gui; Evans, Corey J.; Clouthier, Dennis J.; Judge, R. H.
Issue Date: 2003
Abstract: The $\tilde{A}^{2}A^{\prime} - \tilde{X}^{2} A^{\prime\prime}$ electronic transition of the HPC1 free radical has been observed by laser-induced fluorescence (LIF) spectroscopy in the $458 - 400$ nm region. HPC1 and DPC1 were generated in a pulsed discharge jet using a precursor mixture of $PCl_{3}$ and $H_{2}$ or $D_{2}$ in argon. At low resolution the bands have the characteristic rotational contour of a perpendicular transition of an asymmetric top, with additional axis switching branches due to the low symmetry of the molecule. At high resolution, small $K_{a}$ dependent spin splittings are found which confirm that the molecule contains a single unpaired electron. Our studies of the LIF and wavelength resolved emission spectra have established most of the vibrational frequencies of HPCl and DPCl and the molecular structures in the ground and excited states have been obtained from rotational analyses of the $0_{0}^{0}$ bands of both isotopomers. The analysis of the spectra, rotational constants, vibrational frequencies, molecular geometries and the results of CCSD(T) ab initio calculations of the molecular parameters will be discussed.
URI: http://hdl.handle.net/1811/21083
Other Identifiers: 2003-WF-06
Bookmark and Share