论文部分内容阅读
A new coordination polymer {[Ba(L)(H2O)5]·H2O}n(1, H2 L = 3,3’-((((ethane-1,2-diylbis(oxy))-bis(2,1-phenylene))bis(methylene))bis(oxy))dibenzoic acid) has been synthesized under evaporation process and characterized by elemental analysis, IR spectra, TG analysis,fluorescence spectrum, powder X-ray diffraction analysis and single-crystal X-ray diffraction.Complex 1 crystallizes in the monoclinic system, space group P21/c, with a = 20.918(5), b =7.4539(2), c = 20.168(5) A, β = 95.486(2)o, V = 3130.1(1) A3, Z = 4, C30H34 Ba O14, Mr = 755.91, Dc =1.604 g/cm3, F(000) = 1528, μ = 1.34 mm-1, the final R = 0.0404 and w R = 0.0676 for all data.Single-crystal X-ray structural reveals that the Ba(II) ion adopts a nine-coordinated distorted tricapped trigonal prism coordination geometry. Adjacent Ba(II) ions are linked by one μ2-L2- anion and two(μ2-H2O) water molecules to generate an infinite 1D zigzag chain structure. Then these chains are further linked into a 2D layer supramolecular architecture through O–H···O hydrogen bonds. Luminescent property and thermal stability of complex 1 were investigated.
A new coordination polymer {[Ba (L) (H2O) 5] · H2O} n (1, H2 L = 3,3 ’- ethane- 1,2-diylbis (oxy) 1-phenylene) bis (oxy)) dibenzoic acid has been synthesized under evaporation process and characterized by elemental analysis, IR spectra, TG analysis, fluorescence spectrum, powder X-ray diffraction analysis and single- Complex-1 crystallizes in the monoclinic system, space group P21 / c with a = 20.918 (5), b = 7.4539 (2), c = 20.168 (5) A, = 3130.1 (1) A3, Z = 4, C30H34 Ba O14, Mr = 755.91, Dc = 1.604 g / cm3, F (000) = 1528, μ = 1.34 mm -1, final R = 0.0404 and w R = for all data. Single-crystal X-ray structural reveals that the Ba (II) ion adopts a nine-coordinated distorted tricapped trigonal prism coordination geometry. Adjacent Ba (II) ions are linked by one μ2-L2- anion and two -H2O) water molecules to generate an infinite 1D zigzag chain structure. These chains are further linked into a 2D layer supramolecular archi tecture through O-H ··· O hydrogen bonds. Luminescent property and thermal stability of complex 1 were investigated.