Author/Authors :
Pfluger، نويسنده , , David and Motylewski، نويسنده , , Tomasz and Linnartz، نويسنده , , Harold and Sinclair، نويسنده , , Wayne E. and Maier، نويسنده , , John P.، نويسنده ,
Abstract :
The rotationally resolved A 2Πu←X 2Πg electronic origin band spectrum of tetraacetylene cation (HC8H+) and its deuterated derivative (DC8D+) has been recorded in the gas phase, applying both frequency modulation spectroscopy in a liquid nitrogen cooled hollow cathode discharge and cavity ringdown spectroscopy in a supersonic planar plasma. The combined analysis of the rotational structure yields accurate molecular constants for the ground and electronically excited states as well as information on the molecular geometry.
