An infrared spectroscopic investigatio of the species chemisorbed from ethylene over a platinum/silica catalyst between 100 and 294 K; the observation of di-σ adsorbed PtCH2CH2Pt surface complexes
Abstract
Changes in the i.r. spectra of chemisorbed species from ethylene on a Pt/SiO2 catalyst between 100 and 294 K allow the identification of the di-σ adsorbed species (3) at low temperatures with partial transformation to the ethylidyne species (2) at room temperature.