Abstract:The photoabsorption spectrum of the lowest ion pair state (B2Σ+1/2 ) of HgBr has been measured in the visible and ultraviolet (280≤λ≤480 nm) by laser excitation spectroscopy. Several previously unreported bands, peaking at 289, 302, 318, 330, 340, 364–373, and 401 nm, are observed and provide a stringent test for ab initio calculations of the excited state interaction potentials for the diatomic radical. A highly structured band lying between ∼444 and 470 nm confirms the observations of D. P. Greene, K. P. Kil… Show more
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