Azide, water and adipate as bridging ligands for Cu(II): synthesis, structure and magnetism of (μ4-adipato-κ-O)(μ-aqua)(μ-azido-κN1,N1)copper(II) monohydrate

Zouaoui Setifi, Mohamed Ghazzali, Christopher Glidewell, Olivier Pérez, Fatima Setifi, Carlos J. Gómez-García, Jan Reedijk

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

The synthesis, characterization, single crystal structure and magnetic properties of the compound [(CuN3(OH2))2(adp)]n (1) are presented, in which adp stands for the adipate(2-) anion. This compound consists of layers containing chains of six-coordinated Cu(II) ions; the chains are connected by μ4adipate anions. The magnetically interesting part of the compound is the Cu(II) chain, built from 3 bridging ligands, i.e. a water ligand, an azide anionic ligand bridging by using a terminal N atom to connect 2 Cu(II) ions, and one symmetrically bridging carboxylato group of adipate; the other end of the tetradentate adipate anions symmetrically connect the chains, forming the layers.

From the magnetic point of view the compound is considered as a Cu(II) chain with a quite unusual, symmetrical water bridge, the μ-syn-syn carboxylate and the μ-N3 bridge. The bridging water also hydrogen bonds to a terminal N of a nearby azido ligand. Magnetic susceptibility measurements show that 1 presents moderate ferromagnetic intrachain interactions (Jchain = +38.4 cm-1) with a metamagnetic behaviour for the inter-chain interaction with a critical field of 0.7 T.
Original languageEnglish
Pages (from-to)244-248
Number of pages5
JournalPolyhedron
Volume117
Early online date3 Jun 2016
DOIs
Publication statusPublished - 15 Oct 2016

Keywords

  • Copper
  • Adipate
  • Azide
  • Ferromagnetic chain
  • Metamagnet
  • Water bridge

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