A series of monodentate perfluoroalkylphosphine complexes of platinum are presented and surveyed as precursors to ethylene dimerization catalysts. The novel arene complexes (h6-C6H3Me3)Pt(dfebp)H+ (dfebp = tBu(C2F5)2P) and (h6-C6H3Me3)Pt(dfmp)Me+ (dfmp = Me(C2F5)2P) have been prepared by reacting (dfebp)2Pt and (dfmp)2PtMe2, respectively, with mesitylenium acid, C6H4Me3+B(C6F5)4-. Treatment of (dfebp)2Pt with mesitylenium acid in orthodifluorobenzene in the presence of excess ethylene at 20 �C resulted in ethylene conversion into trans and cis 2-butenes in a ratio 2:1 (TON 4.7 h�1). In comparison, (dfmp)2PtMe2) formed butenes at a slower rate (TON 2.5 h�1). The underlying phosphine/ethylene displacement equilibria and intermediates in these reactions will be discussed.

Synthesis and reactions of monodentate acceptor platinum phosphine complexes

248th National Meeting (2014)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.