Reactions between small organic molecules and Ag+ in the gas-phase. A theoretical study

The complexation in the gas-phase of several small organic compounds (C2H4H 2O,CH2O,CO, HCOOH, HCONH2, NH3, CH3NH2. CH2NH and HCN) by Ag+ has been theo retically investigated using DFT calculations. Structural features are repo rted for the optimized geometries performed at the B3LYP density functional level of theory, using ECPs and a basis set augmented with one set of f fu nctions. Final energies were evaluated using two sets of f functions. To as sess the reliability of the method used, high correlation level methods (QC ISD(T) and CCSD(T)) have been performed for some models. The computational binding energies have been compared to the available experimental ones. (C) 2001 Elsevier Science B.V. All rights reserved.