A High-Temperature Photochemistry Study of the D + ND3 Reaction

Article abstract of DOI:10.1021/j100308a043

The kinetics of the D + ND3 reaction (2) has been studied from 590 to 1220 K by using the high-temperature photochemistry (HTP) technique.D(1²S) atoms were generated by flash photolysis of ND3 and monitored by time-resolved atomic resonance fluorescence with pulse counting. k₂(T) is determined to be 3.2 x 1E-10 exp(-8810 K/T) cm³ molecule^-1 s^-1.Accuracy assessments are discussed in the text.Comparison to k₁(T) for H + NH3 (1) measured in the same apparatus and over a similar temperature range shows that k₂(T) is smaller. k₁(T) and k₂(T) agree reasonably well with calculations based on transition-state theory and a simple tunneling model using the same potential energy surface for both reactions.Considered alone, k₂(T) can also be modeled without tunneling.