Unimolecular Reactions of Nitrites and Nitrates.
Abstract
Photodissociation of CH3ONO, C2H5ONO, and C3H7ONO have been studied using multiphoton ionization (MPI) to detect the NO fragment. Each of these molecules was dissociated by one photon (382-383 nm) and the fragment NO(X 2 Pi) was excited and ionized in a subsequent (2+1) photon process. All events occurred within the same laser pulse duration (- 7 ns), thus ensuring collision-free conditions. The MPI spectrum NO was analyzed for rotational state distributions. When compared to a room temperature spectrum of NO at 300 K, the extent of NO rotational excitation observed in CH3ONO was very large, Erot>1/2100 cm) and the distribution of NO was found to be non-thermal. C2H5ONO and C3H7ONO on the other hand, produced NO fragments which displayed a Boltzmann behavior and could be characterized by Trot equals 350 K and 250 K respectively. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1983
- Accession Number
- ADA127825
Entities
People
- Curt Wittig
- Hanna Reisler
Organizations
- University of Southern California