Radiative lifetime, electronic quenching and spin-orbit state relaxation rate constants for SO(A 3Π0, 1, 2, v′=0)

✍ Scribed by Glenn Lo; R. Beaman; D.W. Setser

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 708 KB
• Volume: 149
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(88)85112-1

✦ Synopsis

A microwave discharge in a SOCl,/Ar mixture has been developed as a source for kinetic studies of the SO(A 3110,,,z) states in a flow reactor using the laser-induced fluorescence method. The radiative lifetime of SO(A 'r&, v' =O) for a 300 K Boltzmann distribution of rotational and spin-orbit states was found to be 35 + 3 KS. Quenching rate constants at 300 K were measured for He, Ar and 11 molecular reagents. The spin-orbit relaxation rate constant for the 'Hz, v' = 0 and 'II,, u' = 0 states in Ar are in the (1-3)X lo-" cm3 molecule-' s-' range.