Electronic spectroscopy of the Au(6p)–Kr complex

Abstract

We report electronic absorption spectra, recorded using one- and two-color resonance-enhanced multiphoton ionization spectroscopy, of the Au-Kr complex. The transition is localized on the gold atom, and corresponds to a 6p<--6s atomic excitation; we observe transitions to the D (2)Pi(1/2) and D (2)Pi(3/2) spin-orbit states. In addition, we report the results of ab initio calculations, which consider electronic states arising from the 6 (2)S, 5 (2)D, and 6 (2)P atomic energy levels of Au. Further, we also report an accurate value for the dissociation energy of the ground state of Au-Kr, based on basis set extrapolated RCCSD(T) calculations. The experimental results are discussed in the light of the theoretical ones.

Resonant two-photon mass-analyzed threshold ionization of 2,5-difluoroaniline

“…These techniques detect either photons or electrons with high sensitivity. In contrast, the resonance-enhanced multi-photon ionization (RE-MPI) [8,17] and mass-analyzed threshold ionization (MATI) [18][19][20][21] methods can provide the same experimental data with mass information. These techniques are suitable for spectroscopic studies of molecular isomers to avoid spectral congestion caused by presence of impurities, complexes, and clusters in the chemical sample.…”

Nature of closed‐ and open‐shell interactions between noble metals and rare gas atoms

“…On the other hand, the interaction between open‐shell neutral coinage metal and rare gas atom has been studied intensively . Duncan and coworkers and Breckenridge and coworkers have investigated the electronic spectroscopy of M–Rg complexes: Au–Rg (Rg = Ne, Ar, Kr and Xe), Ag–Rg (Rg = Ar, Kr, and Xe), and Cu–Kr by means of resonance enhanced multiphoton ionization spectroscopy. Gardner et al also obtained the RCCSD(T) PECs for the X 2 ∑ + electronic states of the M–Rg (M = Cu–Au and Rg = He–Rn) complexes and derived the spectroscopic parameters and compared them with those determined experimentally.…”

Potential energy curves for the interaction of Ag($\mathbf {5}{\bm s}$5s) and Ag($\mathbf {5}{\bm p}$5p) with noble gas atoms

“…Among these, the interaction of Ag and other coinage metals with noble gases has been the subject of numerous experimental studies. [10][11][12][13][14][15][16][17] Spectroscopic studies on these complexes have focused on the molecular absorption corresponding to the strong atomic 2 P ← 2 S transition. The understanding of the bonding of such vdW complexes can be used to improve models of atom-surface interaction and study of chemical reaction dynamics, [18][19][20] while their decay by chemical exchange, pre-dissociation, and dissociation, can be controlled by external fields.…”