Weak Ferromagnetism Caused by a 2D Effect in Two New Cobalt(II)- and Nickel(II)-1,2-Bis(4-pyridyl)ethane (bpa) Polynuclear Compounds

作者：de la Pinta Noelia; Madariaga Gotzon; Lezama Luis; Luz Fidalgo M; Cortes Roberto^*

来源：European Journal of Inorganic Chemistry, 2010, 2010(22): 3491-3497.

DOI：10.1002/ejic.201000134

• Polynuclear structures
• Magnetic properties
• Structure-magnetism relationship
• N ligands
• Cyanato ligands
• Cobalt
• Nickel

The combination of bpa [1,2-bis(4-pyridyl)ethane] with the pseudohalide cyanato (NCO-) ligand leads to the preparation of two new isomorphous compounds exhibiting the general formula [M(NCO)(2)(bpa)(2)](n) [M = Co (1) and M = Ni (2)]. Both compounds consist of M (gauche-bpa)(2)-M chains linked by hydrogen bonds to give a global 2D network. Co-II and Ni-II ions are octahedrally coordinated to four bpa ligands and two terminal NCO groups. The two compounds exhibit slight antiferromagnetic interactions through bpa groups and a 2D effect leading to a ferromagnetic component.

• 出版日期2010-8