Reactions of low-valent metal complexes with fluorocarbons. Part XXIX. Zerovalent nickel and platinum complexes with hexafluorobut-2-yne and hexakis(trifluoromethyl)benzene
- 1 January 1974
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 1,p. 97-101
- https://doi.org/10.1039/dt9740000097
Abstract
Reaction of [Pt(trans-stilbene)(PEt3)2] with C6(CF3)6 affords a complex [Pt{C6(CF3)6}(PEt3)2], shown by variable temperature 19F n.m.r. spectroscopy to be a fluxional molecule. Treatment of the related nickel complexes [Ni{C6(CF3)6}L2](L = AsMe2Ph or P(OMe)3) with an excess of CF3CCCF3 yields a new kind of complex: a hexakis(trifluoromethyl)nickelacyclohepta-cis,trans,cis-triene. Reaction of [Pt{C2(CF3)2}(PEt3)2] with excess of hexafluorobut-2-yne proceeds more slowly to afford a monophosphine substituted hexakis(trifluoromethyl)platinacyclohepta-cis,trans,cis-triene, which with Ph2PCH2CH2PPh2 gives a complex isostructural with the nickel systems.Keywords
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