Pt+-mediated activation of methane: theory and experiment

✍ Scribed by Christoph Heinemann; Ralf Wesendrup; Helmut Schwarz

• Book ID: 103033370
• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 545 KB
• Volume: 239
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(95)00446-b

✦ Synopsis

A combined theoretical and experimental study on the Pt +-mediated activation of methane is presented. Dehydrogenation of CH 4 by thermalized Pt + cations (Pt++ CH 4 ~ PtCH~-+ H 2) proceeds along a doublet ground state potential energy surface and is found to be reversible under the conditions of Fourier transform ion-cyclotron resonance mass spectrometry. The recently reported oxidation of the cationic platinum carbene PtCH~-by O 2 produces electronically excited Pt + cations, which are detected in the 4F9/2 state by means of charge-transfer bracketing experiments.