Silver ion enhanced C-H activation in Pt(ii) hydroxo complexes

Tracy L. Lohr, Warren E. Piers*, Michael J. Sgro, Masood Parvez

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Reacting neutral Pt(ii) hydroxo compounds (NN)Pt(R)(OH) (R = OH, Ph, and Me, NN = bulky terphenyl diimine) with silver bis(trifluromethanesulfonyl)imide produces new hydroxo complexes with the silver binding through the Pt-OH bonds as determined by 195Pt NMR and X-ray analysis (R = OH). These complexes were found to activate the aromatic C-D bonds of C6D 6 at significantly enhanced rates relative to the silver free hydroxo complexes. Mechanistic studies for R = Ph are consistent with a homogeneous pathway that is bimolecular (ΔH = 17(2) kcal mol -1 and ΔS = -25(6) e.u. and ΔG‡295 = 10(2) kcal mol-1), first order in [Pt] and substrate.

Original languageEnglish (US)
Pages (from-to)13858-13864
Number of pages7
JournalDalton Transactions
Volume43
Issue number37
DOIs
StatePublished - Jan 1 2014

ASJC Scopus subject areas

  • Inorganic Chemistry

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