BCl(A-X) band emission peaked at 272 nm plus N2(C-B) spectra from dc b
reakdown initiated detonations in HN3/BCl3 gas mixtures are reported.
Negligible NH(A-X) emission at 336.0/337.1 nm is observed in contrast
to its strong intensity in pure HN3 breakdown-induced decomposition. T
he presence of the HN3 detonation appears to enhance the production of
BCl(A-X) emission indicating the liberation of chemical energy from t
he HN3 decomposition to excited BCl but at low effective yields of 8 X
10(-4)%.