A new tetranuclear copper(II) complex using a Schiff base ligand: Synthesis, structural, and magnetic studies

Fatima Aouaidjia, Amel Messai, Rachid Siab, Ahmad I. Ayesh

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

This paper reports on the synthesis, X-ray, and magnetic properties of tetranuclear CuII complex [CuL4] with square-like structure. A Schiff base ligand used for synthesis in this work derives from condensation of acetylacetone with DL-valine amino acid. The structure of the synthesized ligand was investigated by FTIR and NMR. Investigation of the crystal packing diagrams demonstrates extensive C–H⋯O interactions of hydrogen bonding, causing to the production of network structures. The complex exhibits exchange interaction among the CuII ions by a bridging carboxylate pathway. Analysis of the magnetic data through spin Hamiltonians of the form Ĥ=-2J(Ŝ1Ŝ44Ŝ22Ŝ33Ŝ1)-2J1Ŝ23Ŝ4) (J has a positive value for a ferromagnetic interaction and negative value for an antiferromagnetic interaction) lead to the following parameters set of best-fit: J = 3.04 cm−1, J′ = 0 cm−1, g = 2.09, and ZJ = −0.109 cm−1.

Original languageEnglish
Pages (from-to)257-263
Number of pages7
JournalPolyhedron
Volume133
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • Copper complex
  • Magnetic properties
  • Schiff base ligand
  • Simulation
  • Tetranuclear copper(II)

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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