Laser spectroscopy of the C1Σ+-X1Σ+ transition of ScBr

摘要

The laser induced fluorescence spectrum of scandium monobromide (ScBr) between 795 and 845 nm has been recorded and analyzed. ScBr was produced by reacting laser vaporized Sc atoms with ethyl bromide (C 2H 5Br). Spectra of six vibrational bands of both Sc 79Br and Sc 81Br isotopomers of the C 1Σ +-X 1Σ + transition were observed. A least-squares fit of the measured line positions yielded accurate molecular constants for the v = 0-3 levels of the C 1Σ + state and the v = 0-2 levels of the X 1Σ + state. The equilibrium bond length of the C 1Σ + state has been determined to be 2.4776 . © 2012 Elsevier B.V. All rights reserved.