XeF(C) state lifetime and quenching by rare gases and fluorine donors

The lifetime and quenching rate constants for the XeF(C) state have been measured when that state is produced by flash photolysis of XeF2 in the presence of such quenching gases as He, Ne, N2, Xe, Ar, XeF2, NF3, and F2. The lifetime measured in this manner is 957 ns and the quenching rate constants are 1.2×10−13, 3×10−13, 4×10−13, 1×10−12, 9×10−14, 1.7×10−10, 1.6×10−11, and 8×10−11 cm3 sec−1, respectively.