OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

DIMETHYL-S-TETRAZINE VAPOR: VISIBLE ABSORPTION, LASER-EXCITED FLUORESCENCE, AND PHOTOPHYSICS

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/11163

Show simple item record

Files Size Format View
1980-FC-04.jpg 111.2Kb JPEG image Thumbnail of DIMETHYL-S-TETRAZINE VAPOR: VISIBLE ABSORPTION, LASER-EXCITED FLUORESCENCE, AND PHOTOPHYSICS

dc.creator Asmuth, G. G. en_US
dc.creator Innes, K. K. en_US
dc.creator Job, V. A. en_US
dc.date.accessioned 2006-06-15T14:29:45Z
dc.date.available 2006-06-15T14:29:45Z
dc.date.issued 1980 en_US
dc.identifier 1980-FC-4 en_US
dc.identifier.uri http://hdl.handle.net/1811/11163
dc.description Author Institution: en_US
dc.description.abstract Except for broader bands, hot bands and a $500 cm^{-1}$ shift of the 0-0 band to higher frequencies, dimethyl-s-tetrazine as a vapor is found to exhibit the same visible absorption and excited-state zero-level emission spectra that it does when dissolved in p-xylene at $4.2^{\circ} K$ and below. Vibrational frequencies in both $\tilde{A}^{1} B_{3u}$ and $\tilde{X}^{1}A_{g}$ states show almost no solvent affects. Even an unusual ""negative"" anharmonicity of the principal progression-forming mode $\nu_{6a}$ in the ground state is the same in both phases. Franck-Condon activity also is independent of phase; in fact, for $\nu_{6a}$ it is nearly the same as for s-tetrazine in the vapor phase. Single vibronic level excitations into the $0-0, 6a^{1}_{0}, 1^{1}_{0}$ and $6a^{2}_{0}$ bands show that vibrational relaxation is appreciable for pressures of a torr and greater. Mode-to-mode flow does not follow the propensity rules exhibited by the $S_{1}$ state of benzene. Rotational relaxation and competition of collisional relaxations with predissociation are revealed when foreign gas is added. en_US
dc.format.extent 113932 bytes
dc.format.mimetype image/jpeg
dc.language.iso English en_US
dc.title DIMETHYL-S-TETRAZINE VAPOR: VISIBLE ABSORPTION, LASER-EXCITED FLUORESCENCE, AND PHOTOPHYSICS en_US
dc.type article en_US