The reaction of acetone with [Cu(en)2]2+: The crystal structure of the copper(II)-β-aminoketone complex initially formed and the kinetics of its base-catalysed conversion to the copper(II) complex of trans[14]dieneN4

Robert W. Hay*, Andrew Danby, Sian Miller, Philip Lightfoot

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The copper(II) complex of the β-aminoketone 14-amino-4,4,9,11,11-pentamethyl-5,8,12-triazatetradec-8-en-2-one (L), [CuL](ClO4)2·MeCN has been prepared and its structure established by X-ray crystallography. C18H37N5O9Cl2Cu, triclinic, space group P1, a = 10.752(9), b = 15.980(10), c = 8.112(7), α = 100.24(7), β = 95.43(7), γ = 93.54(6), V = 1361(1) Å3, Z = 2. In basic solution the complex undergoes base-catalysed ring closure to give the copper(H) complex of the macrocycle trans[14]dieneN4. The kinetics of the ring closure reaction have been studied in detail. Ring closure occurs by an intramolecular reaction involving the hydroxocomplex [CuLOH]+.

Original languageEnglish
Pages (from-to)395-399
Number of pages5
JournalInorganica Chimica Acta
Volume246
Issue number1-2 SPEC. ISSUE
Publication statusPublished - 1 Jan 1996

Keywords

  • Aminoketone complexes
  • Copper complexes
  • Crystal structure
  • Kinetics and mechanism

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