Accession Number : ADA315454

Title :   Spectroscopic Studies of Gas-Phase ArCH(D) Van der Waals (vdW) Complexes: II. Observation and Analysis of B-X Electronic Transitions of ArCD.

Descriptive Note : Final rept. Jul 92-Jul 93,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Sausa, Rosario C. ; McQuaid, Michael J. ; Lemire, George W.

PDF Url : ADA315454

Report Date : AUG 1996

Pagination or Media Count : 26

Abstract : The ArCD van der Waals (vdW) complex has been generated in the gas phase by the 248-nm photolysis of CDBr3 entrained in a supersonic jet of argon. Rotationally resolved spectra associated with the complex have been observed by laser-induced fluorescence in the vicinity of the CD B(2)SIGMA- X(2)PI(1,0) band near 366 nm. Bands at 27310.7 /cm and 27327.8 /cm are rotationally analyzed using computer simulations and assigned as transitions to the B state (1,0 (sup 0),0) and (1,1(sup rho) ,0) vibrational levels, respectively. The vibronic structure of the ArCD excited states has also been analyzed using a model based on hindered internal rotation. The results are compared to those reported for ArCH.

Descriptors :   *METHYL RADICALS, *ARGON, *VAN DER WAALS FORCES, COMPUTERIZED SIMULATION, VIBRATION, SPECTROSCOPY, LASER INDUCED FLUORESCENCE, EXCITATION, RESOLUTION, VAPOR PHASES, COMBUSTION, GROUND STATE, FLAMES, ELECTRON TRANSITIONS, ROTATION, COLLISIONS, ATMOSPHERIC CHEMISTRY, CHEMICAL RADICALS, RARE GASES, INTERSTELLAR SPACE.

Subject Categories : Physical Chemistry
      Inorganic Chemistry
      Lasers and Masers
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE