Low-temperature kinetic NMR studies on the insertion of a single olefin molecule into a Zr-C bond: Assessing the counterion-solvent interplay

L. Rocchigiani, G. Ciancaleoni, C. Zuccaccia, A. MacChioni

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25 Citations (Scopus)

Abstract

Sticky counterions: Low‐temperature kinetic NMR studies were performed to determine ΔH and ΔS values for the insertion of a single 2‐methyl‐1‐heptene molecule into a Zr-C bond of [Cp2Zr(η2‐CH2NMePh)][X] (1a: X=MeB(C6F5)3−, 1b: B(C6F5)4−) in [D8]toluene and a 1:1 mixture of [D8]toluene and [D5]chlorobenzene. Both activation parameters critically depend on the interplay of the counterion and the solvent.
Original languageEnglish
Pages (from-to)11752-11755
JournalAngewandte Chemie - International Edition
Volume50
Issue number49
Early online date11 Oct 2011
DOIs
Publication statusPublished - 2 Dec 2011

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