Chemiluminescence of argon bromide. II. Potential curves of ArBr and population distributions in the B(1/2) and C(3/2) electronic states

The continuous emission spectra of ArBr (Paper I) are analyzed by comparison with computer simulations, using trial molecular potential curves and uniform WKB wave functions. Vibrational distributions in the emitting states are derived by a least-squares technique. For the highly-structured B(1/2)-X(1/2) continuum, rather precise results are obtained and it is shown that the product energy distributions in the reactions Ar*+HBr and K+HBr are closely similar. Analogous simulations of the C(3/2)-A(3/2) system yield less precise information because this continuum is partially overlapped by B-X emission. The results for both systems support previous ab initio calculations of the noble-gas halides.