Figure 3.
(a) Steady-state optical absorption spectrum of Cr(CO)6 compared with transient optical absorption spectra at 0.5 and 300 ps pump–probe delay. For comparison, the steady-state spectrum is scaled. (b) Calculated absorption spectra of Cr(CO)6, Cr(CO)5 in C4v and a C2v distorted symmetry, and the Cr(CO)5-alkane σ-complex at the TD-DFT level of theory. The calculated spectrum of Cr(CO)6 is scaled so that the transition at ∼290 nm is 1. All other species are scaled accordingly.