Dynamics of S production in the 193-nm photodissociation of CH3SCH3 CH3SSCH3 CH3SH and H2S

摘要

The production of S($+3$/P, $+1$/D, $+1$/S) in the 193 nm photodissociation of CH$-3$/SCH$-3$/, CH$-3$/SSCH$-3$/, CH$- 3$/SH, and H$-2$/S has been studied using 2 $PLU 1 REMPI techniques. The 193 nm photodissociation cross sections of the radicals CH$-3$/S and HS initially formed in the photodissociation of CH$-3$/SCH$-3$/, CH$-3$/SSCH$-3$/, CH$- 3$/SH, and H$-2$/S have been determined as 1 $MUL 10$+$MIN@18$/ cm$+2$/ using a rate equation scheme. The dominant product from CH$-3$/S is S($+1$/D), while that from SH is S($+3$/P). The formation of S($+3$/P) in the 1-photon (193 nm) photodissociation of CH$-3$/SSCH$-3$/ is also observed.