New Binuclear Complexes with Mixed Ligands and mu(2)-Phenol Oxygen Bridges: Synthesis Crystal Structures and Magnetism

作者：Ma Shu Lin^*; Ren Shi; Yang Yun

来源：Journal of Inorganic and Organometallic Polymers and Materials, 2010, 20(1): 104-109.

DOI：10.1007/s10904-009-9314-4

• Mixed ligand
• pi-Phenol oxygen bridges
• Offset pi-stacked
• Hydrogen-bond
• Crystal structure
• Magnetic properties

Two new complexes, [M-2(L)(2)(bpy)(2)](ClO4)(2) [L = methyl salicylate, bpy = 2,2'-bipyridine, M = Cu (1) and Zn (2)] have been synthesized and structurally characterized by X-ray structure analyses. The centrosymmetric dimeric structure consists of a binuclear unit, in which M (M = Cu or Zn) atoms are bridged by two phenol oxygen atoms as a mu (2)-bridged. The neighboring binuclear units interact with each other by two kinds of weak contacts: one kind is pi-pi stacking by pi-sigma attraction with an edge-to-face C-H center dot center dot center dot pi interaction, and the second type is a H-bonding interaction, which extends the binuclear unit into a 3D network. Magnetic measurements confirm that 1 presents a very strong intradinuclear ferromagnetic coupling between the copper(II) ions.

• 出版日期2010-3
• 单位天津商业大学