Oximato-bridged copper(II) compounds: syntheses, molecular structures, magnetic, thermal and spectroscopic properties

Research output: Contribution to journalArticle

  • External authors:
  • Jnan P. Naskar
  • Chiranjan Biswas
  • Nirmalya Bandyopadhyay
  • James Walsh
  • Miaoli Zhu
  • Liping Lu

Abstract

Reaction of the Schiff base, 1-(4-methylimidazol-5-yl) phenylhydrazonopropane-2-one oxime (LH), with copper(II) perchlorate hexahydrate and copper(II) nitrate trihydrate in a 1 : 1 M proportion in methanol affords [Cu2L2(H2O)(ClO4)](ClO4) (1) and [Cu2L2(H2O)2](NO3)2] (2) in moderate yields. Both 1 and 2 have been characterized by elemental analysis, ESI-MS, FT-IR, UV–vis absorption spectroscopy, EPR, electric conductivity, and magnetic susceptibility measurements. The X-ray crystal structures of 1·CH3COCH3 and 2 have been determined. Both compounds are dinuclear copper(II) complexes, with each copper μ2-bridged by two oxime ligands in a μ212 fashion. Variable temperature magnetic studies on 1 and 2 show that both compounds are dominated by an antiferromagnetic coupling through the oxime bridges.

Bibliographical metadata

Original languageEnglish
Pages (from-to)2329-2341
Number of pages13
JournalJournal of Coordination Chemistry
Volume69
Issue number15
Early online date4 Jul 2016
DOIs
StatePublished - 2 Aug 2016