Theoretical study on electronic spectra and interaction in [Au-3]-L-[Au-3] (L = C6F6,Ag+) complexes
The electronic structure and spectroscopic properties of [Au-3(mu-C(OEt) = NC6H4CH3)(3)](n)-(C6F6)(m) and [Au-3(mu-C-2,N-3-bzim)(3)](n)-(Ag+)(m) were studied at the B3LYP, PBE and TPSS levels. The interaction between the [Au-3] cluster and L (C6F6, Ag+) was analyzed. Grimme's dispersion correction is used for those functionals. Weak pi-interactions (Au-C6F6) were found to be the main contribution short-range stability in the models; while in the models with Ag+, an ionic interaction is obtained. The absorption spectra of these models at the PBE level agree with the experimental spectra.
electronic spectra secondary interaction trigold(i)