Hydrothermal Synthesis, Crystal Structure and Photoluminescent Property of a New Isophthalate- bridged Zinc(II) Polymer with One-dimensional Chain Structure: [Zn(ipt)(im)_2]_(2n)·3nH_2O (ipt = Isophthalate, im = Imidazole)

1 INTRODUCTION The design and synthesis of metal-organic frame- work structure have been studied widely during the past decade not only because of their intriguing architectures but also their unexpected properties for potential practical applications in a wide number of fields, such as asymmetric catalysis, magnetism, pho- toluminescence and so on[1～3]. These novel struc- tures can be rapidly and efficiently synthesized from simple subunits, where the metal ions, bi- or multi- dentate o…     

一维配位聚合物[Ni3(H2btec)1.5(OH)3(2,2'-bipy)3]n的水热合成及晶体结构

采用水热法合成了一维配位聚合物[N i3(H2btec)1.5(OH)3(2,2-’b ipy)3]n。对其进行了元素分析、红外光谱和X射线单晶衍射测定。该配合物属于单斜晶系,空间群P2(1)/c,晶胞参数a=10.9214(12),b=18.012(2),c=20.566(2),β=94.933(2),°z=4,V=4030.6(8)3,D c=1.765g/cm3,F(000)=2184,R1=0.0483,wR2=0.0972。     

Synthesis, Crystal Structure and Photoluminescent Property of a Three-dimensional Zinc（Ⅱ） Coordination Polymer: [Zn1.5（PDB）（bix）0.5（μ2-OH）]2n

A new metal-organic coordination polymer [Zn1.5(PDB)(bix)0.5(μ2-OH)]2n 1 (H2PDB = pyridine-3,4-dicarboxylic acid, bix = 1,4-bis(imidazol-1-ylmethyl)-benzene) has been hydrothermally synthesized and structurally characterized by elemental analysis, IR, TG and single-crystal X-ray diffraction. The title compound crystallizes in the monoclinic system, space group P2/c with a = 7.411(2), b = 7.848(3), c = 25.048(8), V = 1451.8(8)3, C28H22N6O10Zn3, Mr = 798.63, Dc = 1.827 g/cm3, μ(MoKα) = 2.529 mm-1, F(000) = 804, Z = 2, the final R = 0.0440 and wR = 0.1035 for 1952 observed reflections (I > 2σ(I)). It exhibits a three-dimensional framework structure. Moreover, its luminescent property has been investigated in the solid state.     

Synthesis,Crystal Structure and Theoretical Calculations of a New Two-dimensional Co(Ⅱ) Coordination Polymer Based on Oxalic Acid and Bis(imidazol) Ligands

A new Co(Ⅱ) coordination polymer has been successfully synthesized under hydrothermal conditions [Co(C2O4)(mbix)]n(1, H2C2O4 = oxalic acid, mbix = 1,3-bis(imidazol-1-ylmethyl)benzene). Its structure has been determined by elemental analyses, IR, UV spectroscopy and single-crystal X-ray diffraction analysis. Pink crystals crystallize in the triclinic system, space group P1 with a = 8.8666(7), b = 9.5859(8), c = 10.8537(9) , α = 67.6810(10), β = 66.1260(10), γ = 77.1300(10)°, V = 777.77(11), C16H14CoN4O4, Mr = 385.24, Dc = 1.645 g/cm3, F(000) = 394, Z = 2, μ(Mo Kα) = 1.134 mm-1, the final R = 0.0482 and w R = 0.1231 for 2968 observed reflections(Ⅰ 2σ(Ⅰ)). It shows a two-dimensional(2D) network structure. The intermolecular C–H···O hydrogen bonding and π-π stacking interactions extend complex 1 into a 3D supramolecular architecture andplay an important role in stabilizing 1. In addition, Natural Bond Orbital(NBO) analysis was performed by using the PBE0/LANL2 DZ method built in Gaussian 09 Program. The calculation results showed obvious covalent interaction between the coordinated atoms and Co(Ⅱ) ion.     

两个由2-(4′-氯-苯甲酰基)苯甲酸和双咪唑基配体构筑的锰、镉配合物的合成及晶体结构(英文)

通过水热法合成了2个配位聚合物[Mn(cbba)2(bimb)]n(1)和[Cd(cbba)2(mbix)]2n(2)(Hcbba=2-(4′-氯-苯甲酰基)苯甲酸,bimb=1,4-双(咪唑基-1-基)丁烷,mbix=1,3-双(咪唑基-1-基)苯)。并对其进行了元素分析、红外光谱、热重和X-射线单晶衍射测定。这两个配合物通过氢键或π-π相互作用形成了三维超分子网状结构。此外,还研究了配合物1的紫外光谱和配合物2的荧光性质。     

两个由2-（4’-氯-苯甲酰基）苯甲酸和双咪唑基配体构筑的锰、镉配合物的合成及晶体结构

通过水热法合成了2个配位聚合物[Mn（cbba）₂（bimb）]_n（1）和[Cd（cbba）₂（mbix）]_2n（2）（Hcbba=2-（4’-氯-苯甲酰基）苯甲酸,bimb=1,4-双（咪唑基-1-基）丁烷,mbix=1,3-双（咪唑基-1-基）苯）。并对其进行了元素分析、红外光谱、热重和X-射线单晶衍射测定。这两个配合物通过氢键或π-π相互作用形成了三维超分子网状结构。此外,还研究了配合物1的紫外光谱和配合物2的荧光性质。     

两个三维超分子铅配位聚合物的水热合成及晶体结构

通过水热法合成了2个新的金属-有机配位聚合物[Pb(NA)L]_n 1, [Pb(CH₃COO)L]_n·nH₂O 2(H₂NA=烟酸, L=2-(4-硝基苯酚基)-1H-咪唑[4, 5-f][1, 10]邻菲罗啉)。并对其进行了元素分析、红外光谱、热重和X-射线单晶衍射测定。这2个配合物通过氢键和π-π相互作用形成了三维超分子网状结构。此外还研究了配合物1和2的荧光性质。     

Syntheses and Crystal Structures of Two Coordination Polymers of Cobalt and Cadmium Assembled by 4,4ˊ-(Ethane-1,2-diyldioxy)dibenzoic Acid

Two new metal-organic coordination polymers [Co0.5（Heoba）（bib）0.5]2n（1） and [Cd（eoba）（phen）]n（2）（H2eoba = 4,4-（ethane-1,2-diyldioxy）dibenzoic acid, bib = 1,4-bis（imidazol-1-yl）-butane, phen = 1,10-phenanthroline） have been hydrothermally synthesized and structurally characterized by elemental analysis, IR spectrum, TG and single-crystal X-ray diffraction. Complex 1 is a 2D network structure, and complex 2 exhibits a 3D network structure. Moreover, the luminescent property of complex 2 has been investigated in the solid state.     

使用莫尔层析技术诊断3-D气流密度场

应用莫尔条纹方法,设计了一种显示燃气射流冲击场的实验装置,测出了射流冲击场的气流密度分布,分析了在马赫盘左右条纹清晰度差的原因,给出了几个重要结论.     

锌、镉配位聚合物的合成、晶体结构及荧光性质

通过水热法合成了2个金属-有机配位聚合物[Zn（boba）（bix）]_n=（1）和[Cd（L1）（L2）]_2n=·nH₂O（2）（H₂boba=4,4’-（丁烷-1,2-二氧基）-二苯甲酸,bix=1,4-双（咪唑基-1-基）苯,H₂L1=4-（羧基甲氧基）苯甲酸,L2=2-（4-羟基）-1H-咪唑并[4,5-f][1,10]菲咯啉）。并对其进行了元素分析、红外光谱、热重和X-射线单晶衍射测定。配合物1为二维网状结构,配合物2为一维双链结构。此外,还研究了它们的荧光性质。