Photodissociation spectroscopy of Ag₄⁺(N₂)ₘ, m = 0-4
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J. Chem. Phys. 113 (13): 5361–5371 (2000)

We have determined photodissociation spectra of Ag-4(+)(N- 2)(m=0-4) in the photon energy range from 2.1 to 3.75 eV. The cluster complexes were generated by laser vaporization and their absolute photodissociation cross sections were measured in depletion using a modified reflectron time-of-flight mass spectrometer. The band spectra show significant nonmonotonic variations with increasing N-2 coverage. The experimental data are contrasted with quantum chemical calculations of ground and electronically excited states using density functional as well as post-Hartree-Fock methods. Experiment and theory are in qualitative agreement allowing tentative assignment of the depletion spectra and insight into the relevant bonding interactions. (C) 2000 American Institute of Physics. [S0021- 9606(00)01137-5].
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