Quenching and Rotational Energy Transfer in Molecular Bromine: Br2(B)
Abstract
This study investigates the rotational energy transfer processes of optically excited bromine molecules in the presence of several collision partners. Resolved laser induced fluorescence spectra of collisionally populated rotational states were analyzed by means of Stern Volmer analysis. Total rotational removal rate coefficients and state-to-state rotational removal rate coefficients for the v'=11,J'=35 level of Br2(B) were obtained for collisions with Br2(X), He, Ar and Xe. Rotational removal rate coefficients were also obtained for the v'11, J'=26 and 47; v'=14, J'=36 states of Br2(B) with collisions with Ar. Total rotational removal rate for Br2 self quenching found to be 3.98+/-0.2x10-10 (cm3/Molec-Sec). Rate coefficients were scaled with respect to reduced mass of collision system and in accordance with exponential energy gap scaling law. Energy gap scaling law fit data well. Rotational removal rates displayed behavior to increase with increase in v' and J' of optically excited parent state.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1991
- Accession Number
- ADA241987
Entities
People
- Dean A. Massman
Organizations
- Air Force Institute of Technology