Kinetics of the DS-radical reactions with CINO and NO2

The rate constants for the reactions of the DS radical with NO₂ (reaction 1) and ClNO (reaction 2) have been measured using the discharge-flow technique at 2 torr total pressure of helium. The DS radical was monitored by laser-induced fluorescence. The reactions were found to have the following bimolecular rate constants (95% confidence level, in units of cm³ molecule^?1 s^?1): This expression for k₁ is found to be in excellent agreement with one of several previous studies. The magnitude of k₂ is examined within the framework of a well-established reactivity trend. © 1994 John Wiley & Sons, Inc.