New Cu(I)-Ethylene Complexes Based on Tridentate Imine Ligands: Synthesis and Structure

Parisa Ebrahimpour, Mairi F. Haddow, Duncan F. Wass*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

10 Citations (Scopus)

Abstract

A new bulky facially coordinating N-3-donor tach-based ligand (tach: cis,cis-1,3,5-triaminocyclohexane) [1: cis,cis-1,3,5-tris(2-fluoro-6-(trifluoromethyl)-benzylideneamino)cyclohexane] has been obtained from the condensation of tach with 3 equiv of the appropriate benzaldehyde. Reaction of 1 with [Cu(NCMe)(4)][PF6] gave the complex [(1)Cu(NCMe)][PF6]. Displacement of the acetonitrile ligand is possible with CO and C2H4 (3-5 bar). Cu(I)-ethylene complexes of ligands 1 and 2 [2: cis,cis-1,3,5-(mesitylideneamino)cyclohexane] were prepared successfully by treatment of the ligands with CuBr and AgSbF6 in the presence of ethylene. These complexes display reversible complexation of the ethylene molecule under mild changes to pressure, suggesting possible application in olefin separation and extraction.

Original languageEnglish
Pages (from-to)3765-3771
Number of pages7
JournalInorganic Chemistry
Volume52
Issue number7
DOIs
Publication statusPublished - 1 Apr 2013

Keywords

  • MONOSUBSTITUTED CIS,CIS-1,3,5-TRIAMINOCYCLOHEXANE-BASED COMPLEXES
  • COPPER(I) ETHYLENE COMPLEX
  • 1,3,5-TRIAZAPENTADIENYL LIGANDS
  • TRIPODAL TETRAAMINES
  • CARBONIC-ANHYDRASE
  • OLEFIN COMPLEXES
  • EPOXIDATION
  • SILVER
  • NMR
  • ARABIDOPSIS

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