A coordination polymer{[Cd(H_(2)dpa)(bpy)]·3H_(2)O}_(n)(Cd-CP)was designed and hydrothermal synthesized based on 4-(2,4-dicarboxyphenoxy)phthalic acid(H_(4)dpa),2,2'-bipyridine(bpy)and Cd(NO_(3))_(2)·4H_...A coordination polymer{[Cd(H_(2)dpa)(bpy)]·3H_(2)O}_(n)(Cd-CP)was designed and hydrothermal synthesized based on 4-(2,4-dicarboxyphenoxy)phthalic acid(H_(4)dpa),2,2'-bipyridine(bpy)and Cd(NO_(3))_(2)·4H_(2)O.The structure was characterized by single-crystal X-ray diffraction,powder X-ray diffraction,elemental analysis,and infrared spectroscopy.Cd-CP belongs to the monoclinic crystal system with the P2_1/c space group and performs in a 1D double-chain structure.The adjacent double chains further form a 3D supramolecular network structure through hydrogen bonding.Thermogravimetric analysis shows that Cd-CP has good thermal stability.Fluorescence analysis showed that Cd-CP had good choosing selectively and was sensitive to metal ions(Fe^(3+)and Zn^(2+)),2,4,6-trinitrophenylhydrazine(TRI),and pyrimethanil(Pth).Interestingly,when Cd-CP was used for fluorescence detection of metal ions,it was found to have a fluorescence quenching effect on Fe^(3+)but had an obvious enhancement effect on Zn^(2+).Therefore,we designed an“on-off-on”logic gate.In addition,the mechanism of fluorescence sensing has been deeply explored.CCDC:2258625.展开更多
In the title compound, [Pb2(C8H4O4)2(C19H12N4O)2]n·3.5nH2O (1), has been synthesized by the hydrothermal assembly of 1,4-benzenedicarboxylate and 4-(1H-1,3,7,8-tetraazacyclopenta[l]-phenanthren-2-yl)phenol(TCPP) ...In the title compound, [Pb2(C8H4O4)2(C19H12N4O)2]n·3.5nH2O (1), has been synthesized by the hydrothermal assembly of 1,4-benzenedicarboxylate and 4-(1H-1,3,7,8-tetraazacyclopenta[l]-phenanthren-2-yl)phenol(TCPP) with lead acetate. Elemental analysis, X-ray crystal structure analysis, IR spectrum, thermogravimetric analysis and luminescence property were carried out for the structural determination and characterization of the title compound. Compound 1 crystallizes in triclinic, space group P1 with a=1.013 54(10) nm, b=1.104 84(11) nm, c=1.210 05(12) nm, α=76.812 0(10)°, β=74.814 0(10)°, γ=86.030 0(10)°, V=1.273 1(2) nm3, Pb2C54H39N8O13.5, Mr=1 430.31, Z=1, Dc= 1.866 g·cm-3, μ=6.680 mm-1, F(000)=691, R=0.027 3 and wR=0.068 7 for 4 042 observed reflections (I>2σ(I)). The compound 1 exhibits two-dimensional network structures, which are further stacked through π-π interactions and hydrogen bonds to form three-dimensional supramolecular polymer. Solid-state luminescent spectrum of the compound 1 indicates intense fluorescent emission. CCDC: 748883.展开更多
文摘A coordination polymer{[Cd(H_(2)dpa)(bpy)]·3H_(2)O}_(n)(Cd-CP)was designed and hydrothermal synthesized based on 4-(2,4-dicarboxyphenoxy)phthalic acid(H_(4)dpa),2,2'-bipyridine(bpy)and Cd(NO_(3))_(2)·4H_(2)O.The structure was characterized by single-crystal X-ray diffraction,powder X-ray diffraction,elemental analysis,and infrared spectroscopy.Cd-CP belongs to the monoclinic crystal system with the P2_1/c space group and performs in a 1D double-chain structure.The adjacent double chains further form a 3D supramolecular network structure through hydrogen bonding.Thermogravimetric analysis shows that Cd-CP has good thermal stability.Fluorescence analysis showed that Cd-CP had good choosing selectively and was sensitive to metal ions(Fe^(3+)and Zn^(2+)),2,4,6-trinitrophenylhydrazine(TRI),and pyrimethanil(Pth).Interestingly,when Cd-CP was used for fluorescence detection of metal ions,it was found to have a fluorescence quenching effect on Fe^(3+)but had an obvious enhancement effect on Zn^(2+).Therefore,we designed an“on-off-on”logic gate.In addition,the mechanism of fluorescence sensing has been deeply explored.CCDC:2258625.
文摘In the title compound, [Pb2(C8H4O4)2(C19H12N4O)2]n·3.5nH2O (1), has been synthesized by the hydrothermal assembly of 1,4-benzenedicarboxylate and 4-(1H-1,3,7,8-tetraazacyclopenta[l]-phenanthren-2-yl)phenol(TCPP) with lead acetate. Elemental analysis, X-ray crystal structure analysis, IR spectrum, thermogravimetric analysis and luminescence property were carried out for the structural determination and characterization of the title compound. Compound 1 crystallizes in triclinic, space group P1 with a=1.013 54(10) nm, b=1.104 84(11) nm, c=1.210 05(12) nm, α=76.812 0(10)°, β=74.814 0(10)°, γ=86.030 0(10)°, V=1.273 1(2) nm3, Pb2C54H39N8O13.5, Mr=1 430.31, Z=1, Dc= 1.866 g·cm-3, μ=6.680 mm-1, F(000)=691, R=0.027 3 and wR=0.068 7 for 4 042 observed reflections (I>2σ(I)). The compound 1 exhibits two-dimensional network structures, which are further stacked through π-π interactions and hydrogen bonds to form three-dimensional supramolecular polymer. Solid-state luminescent spectrum of the compound 1 indicates intense fluorescent emission. CCDC: 748883.
