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., ...Daha Fazla

Chemical Physics Letters, cilt.423, sa.1-3, ss.192-196, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 423 Sayı: 1-3
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.cplett.2006.03.067
  • Dergi Adı: Chemical Physics Letters
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.192-196
  • Ankara Üniversitesi Adresli: Evet

Özet

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.