Jump to main content
Jump to site search

Issue 19, 2005
Previous Article Next Article

A complete series of copper(II) halide complexes (X = F, Cl, Br, I) with a novel Cu(II)–C(sp3) bond

Author affiliations

Abstract

A complete series of copper(II) halide complexes [CuX(tptm)] (X = F (1), Cl (2), Br (3), I (4); tptm = tris(2-pyridylthio)methyl) with a novel CuII–C(sp3) bond has been prepared by the reactions of [Cu(tptm)(CH3CN)]PF6 (5·PF6) with corresponding halide sources of KF or n-Bu4NX (X = Cl, Br, I), and the trigonal bipyramidal structures have been confirmed by X-ray crystallography and/or EPR spectroscopy. The iodide complex 4 easily liberates the iodide anion in acetonitrile forming the acetonitrile complex 5 as a result. The EPR spectra of the complexes showed several superhyperfine structures that strongly indicated the presence of spin density on the halide ligands through the Cu–X bond. The results of DFT calculations essentially matched with the X-ray crystallographic and the EPR spectroscopic results. Cyclic voltammetry revealed a quasi-reversible reduction wave for CuII/CuI indicating a trigonal pyramidal coordination for CuI states. A coincidence of the redox potential for all [CuX(tptm)]0/+ processes indicates that the main oxidation site in each complex is the tptm ligand.

Graphical abstract: A complete series of copper(ii) halide complexes (X = F, Cl, Br, I) with a novel Cu(ii)–C(sp3) bond

Back to tab navigation

Supplementary files

Publication details

The article was received on 19 May 2005, accepted on 20 Jul 2005 and first published on 15 Aug 2005


Article type: Paper
DOI: 10.1039/B507073B
Citation: Dalton Trans., 2005,0, 3179-3186
  •   Request permissions

    A complete series of copper(II) halide complexes (X = F, Cl, Br, I) with a novel Cu(II)–C(sp3) bond

    R. Miyamoto, R. Santo, T. Matsushita, T. Nishioka, A. Ichimura, Y. Teki and I. Kinoshita, Dalton Trans., 2005, 0, 3179
    DOI: 10.1039/B507073B

Search articles by author

Spotlight

Advertisements