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Inorg Chem. 2006 Jul 24;45(15):5799-803.

Synthesis and characterization of a 3D coordination polymer based on trinuclear triangular CuII as secondary building units.

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  • 1Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.


The hydrothermal reaction of Cu(II) salts with 1,2,4-triazole (Htrz) in aqueous ammonia yielded a novel metal-organic framework {[Cu3(mu3-O)(mu3-trz)3(OH)(H2O)6]}n (1), which was characterized by single-crystal X-ray diffraction, X-ray powder diffraction, thermogravimetric analysis, IR, and variable-temperature magnetic susceptibility. It crystallizes in cubic, space group Fd3c with a = 24.644(3) A, V = 14967(3) A(3), and Z = 96. Its framework is the first 3D structure using coordinative interactions constructed via trinuclear triangular Cu(II) secondary building units, in which both Cu(II) ions and trz ligands act as three-connected nodes to form a 6.8(2) net. An overall antiferromagnetic behavior was found in the compound.

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