Magnetic properties of trinuclear Ni-M-Ni complexes, M = Mn, Co and Ni

Atakol O., Boca R., Ercan I., Ercan F., Fuess H., Haase W., ...More

Chemical Physics Letters, vol.423, no.1-3, pp.192-196, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 423 Issue: 1-3
  • Publication Date: 2006
  • Doi Number: 10.1016/j.cplett.2006.03.067
  • Journal Name: Chemical Physics Letters
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.192-196
  • Ankara University Affiliated: Yes

Abstract

A tetradentate ligand, abbr. L2- = dmSALPD2- = N,N′-bis(salicylidene)-1,3-propanediaminato dianion, has been complexed with metal ions in the presence of dimethylformamide (dmf) and nitrite anion. As a result, trinuclear molecular complexes of the type [MII{Ni(NO2)(L2-)(dmf)}2], where MII = Mn(II), Co(II) and Ni(II) were obtained. The magnetic susceptibility and magnetization data were treated simultaneously during the fitting procedure. In addition to the isotropic exchange, the zero-field splitting parameters DA were added to the spin Hamiltonian. An anti-ferromagnetic interaction was found in all complexes and the single ion magnetic anisotropy parameter for the Ni(II) peripheral centers adopt considerable values. © 2006 Elsevier B.V. All rights reserved.