ANALYSIS OF THE LINE-PROFILES OF CH3CN FOR THE J=5[-4 AND J=6[-5 ROTATIONAL TRANSITIONS

The pressure broadening, pressure shift coefficients, and absolute int ensities have been obtained for the J = 6 <-- 5 and the J = 5 <-- 4 ab sorption lines of acetonitrile CH,CN at 110 and 92 GHz, respectively. The absorption line shapes have been directly recorded modulating the radiation beam by an optical chopper. In addition to the self-effects, the foreign-broadening coefficients have also been measured for N-2, O-2, and Ar. (C) 1998 Academic Press.