Biphenyl compounds have potential applications in coordination chemistry, bioinorganic chemistry, materials and medicine. A new biphenyl compound（biphenyl-2,2′-dicarboxylic acid-2-methyl ester） was synthesized by r...Biphenyl compounds have potential applications in coordination chemistry, bioinorganic chemistry, materials and medicine. A new biphenyl compound（biphenyl-2,2′-dicarboxylic acid-2-methyl ester） was synthesized by refluxing biphenyl-2,2′-dicarboxylic acid with Ln（ClO4）3·6H2O in the mixed-solvent of methanol and water for 5 h. The crystals were characterized by X-ray single crystal diffraction, elemental analysis, IR, and 1H NMR. It belongs to monoclinic system with space group P21/n and cell parameters a=1.237 7（5） nm, b=0.808 2（3） nm, c=1.404 8（6） nm, β=114.410（6）° and Z=2. The strong intermolecular hydrogen bonds observed leads to a centrosymmetric dimmer. The oxygen atoms of carboxylic groups in the title compound have strong coordination abilities. It can perhaps be employed to aggregate with transitional metal atoms or lanthanide atoms and generate new complexes, which may have potential applications in many fields. To the best of our knowledge, the synthesis, structure and characterization of biphenyl-2,2′-dicarboxylic acid-2-methyl ester were first reported.展开更多
A silver(I) complex [Ag(chlsp)2](CF3CO2),(chlsp=(E)-4-(4-chlorostyryl) pyridine),was synthesized by the reaction between AgCF3CO2 and chlsp in the anhydrous enthnol. The crystal structure of [Ag(chlsp)2](CF3CO2) was c...A silver(I) complex [Ag(chlsp)2](CF3CO2),(chlsp=(E)-4-(4-chlorostyryl) pyridine),was synthesized by the reaction between AgCF3CO2 and chlsp in the anhydrous enthnol. The crystal structure of [Ag(chlsp)2](CF3CO2) was characterized by elemental analysis,IR and determined by using single crystal X-ray diffraction. The result shows that the complex crystallize in triclinic system,with space group P1,a=0.109 7(2) nm,b=0.111 7(2) nm,c=0.117 2(2) nm,α=73.60(3)°,β=85.03(3)°,γ=81.82(3)°,V=0.136 2(4) nm3,Z=2. The moleculars are connected by Ag…Ag and Ag…Cl interactions,resulting in a three-dimensional network.展开更多
A novel 1D Ladder-like coordination polymer [Na3Er(2,6-PDA)3]·11.5H2O (2,6-H2PDA is pyridine-2,6-dicarboxylic acid) has been synthesized and the crystal structure was determined by X-ray diffraction. The crystal ...A novel 1D Ladder-like coordination polymer [Na3Er(2,6-PDA)3]·11.5H2O (2,6-H2PDA is pyridine-2,6-dicarboxylic acid) has been synthesized and the crystal structure was determined by X-ray diffraction. The crystal structure of the complex belongs to Monoclinic system with space group P21/c, a=0.969 7(3) nm, b=1.914 6(6) nm, c=1.803 1(6) nm, β=91.524(5)°, V=3.346 6(18) mm3, Z=4, Dc=1.863 g·cm-3, μ=2.645 mm-1. The coordination geometry configuration of Er3+ center is tricapped trigonal prism. The structures of the title compound exhibit a novel 1D Ladder-like chain.展开更多
文摘Biphenyl compounds have potential applications in coordination chemistry, bioinorganic chemistry, materials and medicine. A new biphenyl compound（biphenyl-2,2′-dicarboxylic acid-2-methyl ester） was synthesized by refluxing biphenyl-2,2′-dicarboxylic acid with Ln（ClO4）3·6H2O in the mixed-solvent of methanol and water for 5 h. The crystals were characterized by X-ray single crystal diffraction, elemental analysis, IR, and 1H NMR. It belongs to monoclinic system with space group P21/n and cell parameters a=1.237 7（5） nm, b=0.808 2（3） nm, c=1.404 8（6） nm, β=114.410（6）° and Z=2. The strong intermolecular hydrogen bonds observed leads to a centrosymmetric dimmer. The oxygen atoms of carboxylic groups in the title compound have strong coordination abilities. It can perhaps be employed to aggregate with transitional metal atoms or lanthanide atoms and generate new complexes, which may have potential applications in many fields. To the best of our knowledge, the synthesis, structure and characterization of biphenyl-2,2′-dicarboxylic acid-2-methyl ester were first reported.
文摘A silver(I) complex [Ag(chlsp)2](CF3CO2),(chlsp=(E)-4-(4-chlorostyryl) pyridine),was synthesized by the reaction between AgCF3CO2 and chlsp in the anhydrous enthnol. The crystal structure of [Ag(chlsp)2](CF3CO2) was characterized by elemental analysis,IR and determined by using single crystal X-ray diffraction. The result shows that the complex crystallize in triclinic system,with space group P1,a=0.109 7(2) nm,b=0.111 7(2) nm,c=0.117 2(2) nm,α=73.60(3)°,β=85.03(3)°,γ=81.82(3)°,V=0.136 2(4) nm3,Z=2. The moleculars are connected by Ag…Ag and Ag…Cl interactions,resulting in a three-dimensional network.
文摘A novel 1D Ladder-like coordination polymer [Na3Er(2,6-PDA)3]·11.5H2O (2,6-H2PDA is pyridine-2,6-dicarboxylic acid) has been synthesized and the crystal structure was determined by X-ray diffraction. The crystal structure of the complex belongs to Monoclinic system with space group P21/c, a=0.969 7(3) nm, b=1.914 6(6) nm, c=1.803 1(6) nm, β=91.524(5)°, V=3.346 6(18) mm3, Z=4, Dc=1.863 g·cm-3, μ=2.645 mm-1. The coordination geometry configuration of Er3+ center is tricapped trigonal prism. The structures of the title compound exhibit a novel 1D Ladder-like chain.
