Structure and protonation of the bis-ethylene adduct [Pt(μ-PBu<sup>t</sup><sub>2</sub>)(η<sup>2</sup>-CH<sub>2</sub>CH<sub>2</sub>)]<sub>2</sub>. Pt–H–P agostic interaction and proton scrambling
The bis-ethylene derivative [Pt(μ-PBut2)(η2-CH2CH2)]2 was prepared and characterized by X-ray diffraction; its protonation affords [Pt2(μ-PBut2)(μ-PBut2H)(η2-CH2CH2)2](CF3SO3), with a rarely observed PâHâM agostic proton in rapid exchange with those of the adjacent ethylene molecule.