Pt⁺(C₂H₂)_n Complexes Studied with Selected-Ion Infrared Spectroscopy.

ABSTRACT: Platinum cation complexes with multiple acetylene molecules are studied with mass spectrometry and infrared laser spectroscopy. Complexes of the form Pt⁺(C₂H₂)_n are produced in a molecular beam by laser vaporization, analyzed with a time-of-flight mass spectrometer, and selected by mass for studies of their vibrational spectroscopy. Photodissociation action spectra in the C-H stretching region are compared to the spectra predicted for different structural isomers using density functional theory. The comparison between experiment and theory demonstrates that platinum forms cation-π complexes with up to three acetylene molecules, producing an unanticipated asymmetric structure for the three-ligand complex. Additional acetylenes form solvatio

SUBMITTER: Batchelor AG 

PROVIDER: S-EPMC10350954 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature