title: A novel (3,3,6)-connected luminescent metal-organic framework for sensing of nitroaromatic explosives.
abstract: A novel metal-organic framework [Cd3(CPEIP)2(DMF)3]·solvent (1) based on a neutral non-oxo triangular [Cd3(COO)6] secondary building unit (SBU), was synthesized under solvothermal conditions by using a rigid unsymmetrical tricarboxylate ligand 5-((4-carboxyphenyl)ethynyl)isophthalic acid (H3CPEIP). Single-crystal X-ray diffraction analysis reveals that compound 1 crystallizes in the monoclinic space group C2/c. The crystal structure exhibits a rare (3,3,6)-connected three-dimensional (3-D) framework with vertex symbol of (4(2).6)(4(3))(4(5).6(4).8(6)). The incorporation of CPEIP(3+) into 1 gives rise to high luminescence in solid state. The emission of micrometer-sized compound 1 (1') dispersed in ethanol could be quenched efficiently by picric acid (PA), indicating that this compound could be utilized as a chemosensor for detection of aromatic explosives.
authors: State Key Lab of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, PR China.
authors: Libo
authors: L
authors: Sun
authors: Hongzhu
authors: H
authors: Xing
authors: Jin
authors: J
authors: Xu
authors: Zhiqiang
authors: Z
authors: Liang
authors: Jihong
authors: J
authors: Yu
authors: Ruren
authors: R
authors: Xu