Abstract
The 3Π u (4 3P, 4 3P) state of the Zn 2 excimer was excited by pump-and-probe irradiation of Zn vapor in a quartz cell. The resulting structured fluorescence and excitation spectra, which were recorded in the 270–290 nm spectral region, are interpreted as arising from 3Π u (4 3P, 4 3P)↔ 3Π g(4 3P, 4 1S) vibronic transitions. An analysis of the vibrational structures yielded the vibrational frequencies, relative energies, and relative equilibrium internuclear separations for the 3Π u and 3Π g states.
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