Synthesis and Characterisation of New Perfluoropropenyl Complexes of Gold, Platinum, Palladium, and Titanium

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The new stable perfluoropropenyl organometallic complexes [(Ph3P)Au(E-CF=CFCF3)], trans-[(Ph3P)2Pt(Z-CF=CFCF3)Cl], trans-[(Ph3P)2Pd(E-CF=CFCF3)Cl], [(COD)Pt(E-CF=CFCF3)2] and [Cp2Ti(E-CF=CFCF3)Cl] have been obtained from the reaction of LiCF=CFCF3 – derived from Z-CFH=CFCF3 (HFC-1225ye) – with appropriate transition-metal starting materials. The complexes have been characterized by multinuclear NMR studies (19F ,1H, 31P and 13C) and single-crystal structure determinations. Based on the X-ray derived data a comparison is made between -bound perfluoropropenyl and perfluorovinyl ligands; whilst they are found to be electronically quite similar on the basis of their trans-influence the perfluoropropenyl group is significantly more sterically-demanding, and it is suggested that this accounts for the predominance of mono-perfluoropropenyl-substituted complexes with enhanced stabilities.

Bibliographical metadata

Original languageEnglish
JournalJournal of Fluorine Chemistry
Issue number146
Early online date14 Aug 2017
Publication statusPublished - Nov 2017

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