A chiral copper(II) inverse-9-metallacrown-3 complex: Synthesis, crystal structure, ferroelectric and magnetic properties

作者：Liu, Guang-Xiang^*; Guo, Wei; Nishihara, Sadafumi; Ren, Xiao-Ming

来源：Inorganica Chimica Acta, 2011, 368(1): 165-169.

DOI：10.1016/j.ica.2010.12.067

• Oxime complex
• Crystal structure
• Ferroelectric properties
• Magnetic properties

The reaction of phenyl 2-pyridyl ketoxime (PhPyCNOH) with Cu(NO3)(2)center dot 3H(2)O in methanol results in the chiral trinuclear complex [Cu-3(OH)(PhPyCNO)(3)(NO3)(CH3OH)]center dot(NO3) (1), which has been characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. The structure of 1 exhibits a triangle of Cu(II) ions, centered by a triply bridging hydroxo ligand and with three edge-bridging oximate groups from the three PhPyCNO ions. Preliminary variable-temperature magnetic susceptibility studies reveal an antiferromagnetically-coupled system showing antisymmetric exchange. Complex 1 crystallizes in an acentric space group (P2(1)) that belongs to a polar point group, which displays second harmonic generation response and ferroelectric behavior, and provides a new strategy for designing functional coordination complexes.

• 出版日期2011-3-15
• 单位南京工业大学; 安庆师范大学