title: Synthesis and characterization of a 3D coordination polymer based on trinuclear triangular CuII as secondary building units.
abstract: 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.
authors.affiliation: Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
authors.forename: Bin
authors.initials: B
authors.lastname: Ding
authors.forename: Long
authors.initials: L
authors.lastname: Yi
authors.forename: Peng
authors.initials: P
authors.lastname: Cheng
authors.forename: Dai-Zheng
authors.initials: DZ
authors.lastname: Liao
authors.forename: Shi-Ping
authors.initials: SP
authors.lastname: Yan