The B3Π(0+) → X1Σ+ emission spectrum of 79BrF and 81BrF in the range 6250–8700 Å: Rotational analysis of bands in the v′ = 0, 1, 2, 3, 4 progressions,and merged molecular constants for the X1Σ+ and B3Π(0+) states期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

The B3Π(0+) → X1Σ+ emission spectrum of 79BrF and 81BrF in the range 6250–8700 Å: Rotational analysis of bands in the v′ = 0, 1, 2, 3, 4 progressions,and merged molecular constants for the X1Σ+ and B3Π(0+) states

Authors:	J.A. Coxon M.A. Wickramaaratchi

Affiliation:	Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4J3, Canada

Abstract:	Sixteen emission bands of the B³Π(0⁺) → X¹Σ⁺ systems of ⁷⁹BrF and ⁸¹BrF have been analyzed rotationally. Measured line frequencies are fitted by least-squares to determine the rotational constants and origin for each band. The least-squares results for 0 ≤ v′ ≤ 4 and 4 ≤ v″ ≤ 12 are merged with constants from previously reported B ← X absorption and X-state microwave data. RKR potentials for the two states and Franck-Condon factors and r-centroids for the BrF (B-X) system are reported.

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