Vol. 2, Issue 1, Part A (2020)

The adsorption of nitric oxide molecule on small palladium clusters (Pd_n;n=1–6) has been investigated by the density functional theory. The orientations of nitric oxide to get a nitrosyl (-NO) and Isonitrosyl (-ON) ligands were implemented. The most stable palladium clusters have been used as adsorbate. The resulting nitrosyl and Isonitrosyl palladium complexes always chemisorbs in a bent geometry. The nitrosyl complexes showed higher binding energy, charge donation, HOMO-LUMO gap and u(NO) than their isonitrosy counterparts. Looking to the thermodynamic and kinetic stability of the cluster and their interaction with nitric oxide.