Synthesis and crystal structure of a copper(II) complex with a tetradentate dithiadioxime ligand

Shiaw Pyng Wey, A. Mohamed Ibrahim, Mark A. Green, Phillip E. Fanwick

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

A neutral five-coordinate dithiadioxime complex of copper(II), chloro[3,3′-(1,3-propanedithia)bis(3-methyl-2-butanone oximato)(1-)-S,S′, N,N′]copper(II) (Cu(LH)Cl), was prepared by reaction of CuCl2 with the [3,3′-(1,3-propanedithia)bis(3-methyl-2-butanone oxime)] ligand (LH2) in methanol-acetone. The crystal structure of the Cu(LH)Cl monohydrate, [CuCl(C13H25N2S2O2)]·H2O, reveals a square pyramidal geometry about the metal centre. The copper(II) ion is coordinated in an approximate square plane by the two oxime nitrogen atoms and two thioether sulphur atoms of the tetradentate dithiadioxime ligand, with the chlorine occupying an axial coordination site at a CuCl distance of 2.3931(8) Å. The copper-to-nitrogen distances average 1.997 Å, while the copper-to-sulphur distances average 2.3279 Å. The least-squares S2N2 plane is situated 0.467(1) Å below the copper centre. A proton bridges the two oxime oxygen atoms of the complex in the fashion typical of metal complexes containing cis-oxime functions.

Original languageEnglish (US)
Pages (from-to)1097-1100
Number of pages4
JournalPolyhedron
Volume14
Issue number8
DOIs
StatePublished - Apr 1995
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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