title: Electronic transitions of palladium dimer.
abstract: The laser induced fluorescence spectrum of palladium dimer (Pd2) in the visible region between 480 and 700 nm has been observed and analyzed. The gas-phase Pd2 molecule was produced by laser ablation of palladium metal rod. Eleven vibrational bands were observed and assigned to the [17.1](3)Πg-X(3)Σu(+) transition system. The bond length (ro) and vibrational frequency (ΔG1∕2) of the ground X(3)Σu(+) state were determined to be 2.47(4) Å and 211.4(5) cm(-1), respectively. A molecular orbital energy level diagram was used to understand the observed ground and excited electronic states. This is the first gas-phase experimental investigation of the electronic transitions of Pd2.
authors: Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong.
authors: Yue
authors: Y
authors: Qian
authors: Y W
authors: YW
authors: Ng
authors: Zhihua
authors: Z
authors: Chen
authors: A S-C
authors: AS
authors: Cheung