Gas-phase chemistries of platinum ions and [thymine]platinum ions

The gas phase co-ordinations of Pt+· and [Thymine]Pt +· in their electronic ground states with various organic and inorganic molecules have been investigated using experimental and theoretical techniques. Inductively-Coupled Plasma/Selected-Ion Flow Tube Mass Spectrometry (ICP/SIFT/MS) operating at (298 ± 3) K and a helium buffer gas pressure of (0.35 ± 0.01) Torr was used to measure reaction rate coefficients and product distributions. Addition reactions were mainly observed. Reactions of the ligated platinum cation had higher reaction rate coefficients and were more efficient. Structural and thermochemical information for a variety of platinum-containing cations was obtained from molecular orbital calculations. Geometry optimization results obtained from density functional theory calculations, showed a unique pattern of ligand coordination around Pt+·. This in turn, gives insight into the complicated nature of platinum cation chemistry.