| NUKLEONIKA 1993, 38(2):31-47
ENERGY TRANSFER PROCESSES IN THE XENON SENSITIZED PHOTOLYSIS OF HYDROGEN CHLORIDE AND CARBON TETRACHLORIDEK. Wojciechowski, M. Rosa, A. Jówko, M. Foryś Department of Chemistry, Agricultural and Pedagogical University, 3 Maja 54, 08-110 Siedlce, Poland he kinetics and mechanism of energy transfer from Xe(3P1, 3P2) atoms to CCl4 and HCl molecules have been investigated by measuring XeCl (B, C) ® XeCl (X, A) fluorescence intensity under steady-state conditions. Steady-state analysis of the dependence of fluorescence intensity on the xenon and additive pressure shows that beside the two-body excitation transfer the third-order reaction occurs: Xe(3P1, 3P2) + RCl + Xe ® Products with the rate constants (2.0 ± 0.2) * 10-28 and (2.2 ± 0.3) * 10-27 cm6s-1 for CCl4 and HCl, respectively. In the case of CCl4, the XeCl* excimer is formed with efficiency of ca. 20%. The initial concentration ratio of XeClB and XeClC formed in the two-body energy transfer from the Xe(3P1) atom to the HCI molecule is equal to 0.54 and efficiency of the XeCI* excimer formation is equal to 0.03. Close X |