Synthesis, Crystal Structure and Properties of 1,2,3-Triazole Carboxylate Copper (II) Complexes [1,2,3-三唑羧酸铜(Ⅱ)配合物的合成,晶体结构与性质]

作者：Cao Y.-J.; Li Y.-J.; Gao D.-S.; Cong Y.; Zhang J.; Dong Z.-J.; Yuan G.-M.; Cui Z.-W.; Li X.-K.

来源：Journal of Synthetic Crystals, 2018, 47(4): 758-764 and 776.

• 1,2,3-triazole carboxylate copper
• Crystal structure
• Ferromagnetic coupling
• Hydrogen bonding
• Π-π stacking interaction

Two new complexes [Cu(L 1 ) 2 ?2H 2 O](1) and [Cu(L 2 ) 2 ] n (2) (HL 1 =(4-phenyl-1,2,3-triazole-1-yl)acetic acid, HL 2 =(4-phenyl-1,2,3-triazole-2-yl)acetic acid) were synthesized by hydrothermal method and characterized by IR spectrum, mass spectrometry (MS), 1 H NMR, elemental analysis, X-ray single crystal diffraction, X-ray powder diffraction and thermogravimetric analysis. In complex 1, it shows a mononuclear structure and a 2D layered network formed by the intermolecular hydrogen bonds between the chains. In complex 2, the anions via the carboxyl O atom and the triazole ring N atom bridge Cu to extend into a 2D network structure, and further to form a 3D supramolecular structure through π-π stacking interaction in the crystal structure. Furthermore, the magnetic results indicate that the complex 2 is ferromagnetic coupling at low temperature.

• 单位
  武汉科技大学