Abstract :
The jet-cooled rotationally resolved spectra of the pre-dissociation band Σ0g of the 1B2(1Σu+) state of CS2 at 210 nm, which were initiated from highly vibrationally excited levels of the ground electronic state X1Σg+, were recorded using the technique of stimulated emission pumping to prepare the initial levels. The band origin and the rotational constants B, D are 47561.749(12) cm−1 and 0.09903(19), 1.4(4.4) × 10−6 cm−1, respectively. Additionally, state-prepared photo-dissociation was demonstrated by this technique. The pre-dissociation rate initiated from the level of (3 18 0) X1Σg+ is two times faster than that of (0 0 0).
