Rate constants for the deactivation of O(1 D ) by Xe, Kr, and Ar over the range 110–330 K

The rate constants for the deactivation of O(1D) by Xe, Kr, and Ar were measured over the range 110–330 K. Only Xe had a significant temperature dependence. Its Arrhenius expression is { (8.5±1.7) ×10−11 exp[(−103±52)/RT] cm3/molecule⋅s} (E in cal/mole). The rate constants for Kr and Ar are (6.4±1.3) ×10−12 and (5.0±1.5) ×10−13 cm3/molecule⋅s, respectively. The observed trend in deactivation efficiency, Xe≳Kr≳Ar, and the observed temperature effects support the results and the spin–orbit interaction mechanism for deactivation given by Husain and co-workers.