Single vibronic level emission spectroscopy and fluorescence lifetime of the (B)over-tilde1A→(X)over-tilde1A′ system of CuOH and CuOD

We report new studies of the (B) over tilde (1)A '' < - > (X) over tilde (1)A' system of CuOH/CuOD, generated in a pulsed discharge source under jet-cooled conditions. Single vibronic level (SVL) emission spectra obtained from the 0(0)(0) and 2(0)(1) levels of the (B) over tilde (1)A '' state reveal new information on the bending and Cu-O stretching frequencies in the ground state. The derived vibrational parameters are in good agreement with recent high level ab initio calculations. Rotationally resolved laser induced fluorescence excitation spectra of the 2(0)(1) band were obtained, and a rotational analysis performed for the (CuOD)-Cu-63 isotopomer. Additionally, (B) over tilde (1)A '' state fluorescence lifetimes are reported. (C) 2007 Elsevier B.V. All rights reserved.