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L. C. O'BRIEN AND A. L. ELLIOT, Department of Chemistry, Southern Illinois University, Edwardsville, IL 62026-1652.
The visible bands of gold chloride, AuCl, have been recorded at high resolution (0.05 cm-1) in the 17000 - 20000 cm-1 region. The spectrum was recorded in emission using the Fourier transform spectrometer associated with the McMath-Pierce Solar Telescope at Kitt Peak. Excited gold chloride molecules were produced in a microwave discharge with AuCl3 powder in the discharge tube using 4 torr of helium seeded with 3 ppm chlorine. Four vibronic bands of the A - X 1 
+ transition were observed. Four vibronic bands [(0,0), (1,0), (2,0) and (0,1)] of the B 0+ - X 1 + were observed. Spectroscopic parameters for the X, A, and B states will be presented.