A new Zn（Ⅱ） coordination polymer [Zn3（btec）（OH）2（H2O）2]n （1, btec = 1,2,4,5- benzenetetracarboxylate） has been synthesized by hydrothermal reaction and its structure was determined by single-crystal X-ray d...A new Zn（Ⅱ） coordination polymer [Zn3（btec）（OH）2（H2O）2]n （1, btec = 1,2,4,5- benzenetetracarboxylate） has been synthesized by hydrothermal reaction and its structure was determined by single-crystal X-ray diffraction analysis. The title compound crystallizes in mono- clinic, space group C2/c, with a = 19.580（3）, b = 5.0137（8）, c = 15.975（3）, β = 121.629（2）°, V = 1335.3（4）3, C10H8O12Zn3, Mr = 516.27, Z = 4, Dc = 2.568g/cm3, μ = 5.419 mm-1, F（000） = 1016, R = 0.0590 and Rw = 0.1279 for 1110 observed reflections （I 2σ（I））. X-ray analysis shows that the asymmetric unit of the title compound contains two crystallographically unique Zn（Ⅱ） atoms which are connected through the bridging carboxylate oxygen atoms of the btec ligands and μ2-bridging oxygen atoms of water molecules to generate an infinite one-dimensional chain. The adjacent chains are linked together through the benzene rings of the btec ligands to form a two-dimensional polymeric network. The adjacent two-dimensional layers are further connected together by the benzene rings of btec ligands to give the final three-dimensional structure. The benzene rings act as pillars between two layers.展开更多
Two compound crystals of (Hdafo)2·2H2O (1) and (Hdafo)2·2H2O (2) were obtained when we tried synthesizing the mixed ligand compounds of Zinc (Ⅱ)and Cobalt(Ⅱ)with 4,5 diazafluorene 9 one(dafo) and o phthali...Two compound crystals of (Hdafo)2·2H2O (1) and (Hdafo)2·2H2O (2) were obtained when we tried synthesizing the mixed ligand compounds of Zinc (Ⅱ)and Cobalt(Ⅱ)with 4,5 diazafluorene 9 one(dafo) and o phthalic acid, respectively. Their structure was determined by single crystal X ray diffraction. The crystals all belong to monoclinic system, C2/c space group with crystallographic data:(Hdafo)2·2H2O, a=1.6768(5)nm, b=1.2052(3)nm, c=1.3888(4)nm, β=116.793(3), V=2.5053(12)nm3, Z=4, F(000)=1232, Mr=609.57, Dc=1.616g·cm-3, μ(MoKα)=1.444mm-1, R1=0.0373, wR2=0.0765; (Hdafo)2·2H2O, a=1.6787(4)nm, b=1.2078(3)nm, c=1.3911(4)nm, β=116.665(3)°, V=2.5204(11)nm3, Z=4, F(000)=1220, Mr=603.13, Dc=1.589g·cm-3, μ(MoKα)=1.142mm-1, R1=0.0257, wR2=0.0654. The constitutes of the two compounds were proved by elemental, IR Spectra and thermal analyses. CCDC: 1, 198516; 2, 198517.展开更多
A novel one-dimensional chain complex [Zn(dafo)2(H2O)2](NO3)2 was synthesized. It has been characterized by IR, UV, TGA, Elemental analysis and X-ray diffraction analysis. The crystal belongs to triclinic system, P1 s...A novel one-dimensional chain complex [Zn(dafo)2(H2O)2](NO3)2 was synthesized. It has been characterized by IR, UV, TGA, Elemental analysis and X-ray diffraction analysis. The crystal belongs to triclinic system, P1 space group. The Crystallographic data are: a = 0.702 7(14) nm, b = 0.828 95(17) nm, c = 10.225(2) nm, α = 95.02(3)°, β = 91.45(3)°, γ = 99.85(3)°. The crystal structure data indicate that the Zn(Ⅱ) ion was coordinated with the four nitrogen atoms of two dafo and two oxygen atoms of two coordination water molecules, respectively. The complex has a one-dimensional chain structure, which is formed by hydrogen bonds.展开更多
基金supported by the Natural Science Foundation of Fujian Province(No.2010J01029)the Foundation of Education Committee of Fujian Province(Nos.JB11002 and JB10007)
文摘A new Zn（Ⅱ） coordination polymer [Zn3（btec）（OH）2（H2O）2]n （1, btec = 1,2,4,5- benzenetetracarboxylate） has been synthesized by hydrothermal reaction and its structure was determined by single-crystal X-ray diffraction analysis. The title compound crystallizes in mono- clinic, space group C2/c, with a = 19.580（3）, b = 5.0137（8）, c = 15.975（3）, β = 121.629（2）°, V = 1335.3（4）3, C10H8O12Zn3, Mr = 516.27, Z = 4, Dc = 2.568g/cm3, μ = 5.419 mm-1, F（000） = 1016, R = 0.0590 and Rw = 0.1279 for 1110 observed reflections （I 2σ（I））. X-ray analysis shows that the asymmetric unit of the title compound contains two crystallographically unique Zn（Ⅱ） atoms which are connected through the bridging carboxylate oxygen atoms of the btec ligands and μ2-bridging oxygen atoms of water molecules to generate an infinite one-dimensional chain. The adjacent chains are linked together through the benzene rings of the btec ligands to form a two-dimensional polymeric network. The adjacent two-dimensional layers are further connected together by the benzene rings of btec ligands to give the final three-dimensional structure. The benzene rings act as pillars between two layers.
文摘Two compound crystals of (Hdafo)2·2H2O (1) and (Hdafo)2·2H2O (2) were obtained when we tried synthesizing the mixed ligand compounds of Zinc (Ⅱ)and Cobalt(Ⅱ)with 4,5 diazafluorene 9 one(dafo) and o phthalic acid, respectively. Their structure was determined by single crystal X ray diffraction. The crystals all belong to monoclinic system, C2/c space group with crystallographic data:(Hdafo)2·2H2O, a=1.6768(5)nm, b=1.2052(3)nm, c=1.3888(4)nm, β=116.793(3), V=2.5053(12)nm3, Z=4, F(000)=1232, Mr=609.57, Dc=1.616g·cm-3, μ(MoKα)=1.444mm-1, R1=0.0373, wR2=0.0765; (Hdafo)2·2H2O, a=1.6787(4)nm, b=1.2078(3)nm, c=1.3911(4)nm, β=116.665(3)°, V=2.5204(11)nm3, Z=4, F(000)=1220, Mr=603.13, Dc=1.589g·cm-3, μ(MoKα)=1.142mm-1, R1=0.0257, wR2=0.0654. The constitutes of the two compounds were proved by elemental, IR Spectra and thermal analyses. CCDC: 1, 198516; 2, 198517.
文摘A novel one-dimensional chain complex [Zn(dafo)2(H2O)2](NO3)2 was synthesized. It has been characterized by IR, UV, TGA, Elemental analysis and X-ray diffraction analysis. The crystal belongs to triclinic system, P1 space group. The Crystallographic data are: a = 0.702 7(14) nm, b = 0.828 95(17) nm, c = 10.225(2) nm, α = 95.02(3)°, β = 91.45(3)°, γ = 99.85(3)°. The crystal structure data indicate that the Zn(Ⅱ) ion was coordinated with the four nitrogen atoms of two dafo and two oxygen atoms of two coordination water molecules, respectively. The complex has a one-dimensional chain structure, which is formed by hydrogen bonds.
