15min:
THE INFRARED SPECTRA OF SO2- AND (SO2)2- ISOLATED IN SOLID NEON.

DANIEL FORNEY, WARREN E. THOMPSON AND MARILYN E. JACOX, Optical Technology Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8441.

Studies of the infrared absorptions shown by SO2 samples codeposited in a large excess of neon at 5 K with a beam of neon atoms excited in a microwave discharge will be presented. Analysis of the data results in the identification of SO2- and of (SO2)2-. The previously reported infrared spectral assignment for SO2- is revised, and information is obtained regarding the structure of (SO2)2-.