Using symmetrical rigid organic ligand 4,4'-dipyridy(4,4'-bipy),two new Anderson-based supramolecular compounds,namely,[H_(2)(4,4'-bipy)]_(3)·(TeMo_(6)O_(24))·(H_(2)Mo_(6)O_(19))(1)and{Cu_(2)[H(4...Using symmetrical rigid organic ligand 4,4'-dipyridy(4,4'-bipy),two new Anderson-based supramolecular compounds,namely,[H_(2)(4,4'-bipy)]_(3)·(TeMo_(6)O_(24))·(H_(2)Mo_(6)O_(19))(1)and{Cu_(2)[H(4,4'-bipy)]_(2)(H_(2)O)_(6)(TeMo_(6)O_(24))}·4H_(2)O(2),were synthesized in one-pot under hydrothermal conditions.The compounds 1 and 2 have been tested by IR spectra,elemental analyses and single-crystal X-ray diffraction.Compound 1 contains one discrete Anderson anion,one Lindqvist anion and three 4,4'-bipy organic ligands.The anions and 4,4'-bipy alternate with each other by hydrogen bonding,building a supramolecular 1D chain.Adjacent 1D chains are interlinked through hydrogen bonding interactions to further connect a supramolecular 2D layer.Compounds containing both Anderson and Lindqvist polyanions are not common in the crystal structure of POMs.Compound 2 contains one Anderson anion and two metal-organic subunits{Cu_(2)[H(4,4'-bipy)]_(2)(H_(2)O)_(6)}^(6+)as modifiers.The Anderson anions and{Cu_(2)[H(4,4'-bipy)]_(2)(H_(2)O)_(6)}^(6+)subunits are organized into alternating through hydrogen bonding interactions to construct a supramolecular 1D chain.Additionally,the electrochemical properties of compounds 1 and 2 as well as photocatalytic properties are investigated.Results show that compounds 1 and 2 have photocatalytic activity,which can photocatalyze the degradation of organic dyes MB and AF.Also,compounds 1 and 2 have good electrochemical properties for amperometric detection of NO2-and Cr(Ⅵ).Furthermore,Compound 2 can be used as materials of supercapacitor.展开更多
Three zincand cobaltcoordination polymers,namely{[Zn_(2)(μ_(6)-adip)(phen)_(2)]·4H_(2)O}_(n)(1),{[Co_(2)(μ_(6)-adip)(bipy)_(2)]·4H_(2)O}_(n)(2),and[Co_(2)(μ4-adip)(μ-bpa)_(2)]_(n)(3)h...Three zincand cobaltcoordination polymers,namely{[Zn_(2)(μ_(6)-adip)(phen)_(2)]·4H_(2)O}_(n)(1),{[Co_(2)(μ_(6)-adip)(bipy)_(2)]·4H_(2)O}_(n)(2),and[Co_(2)(μ4-adip)(μ-bpa)_(2)]_(n)(3)have been constructed hydrothermally using H4adip(H4adip=5,5′-azanediyldiisophthalic acid),phen(phen=1,10-phenanthroline),bipy(bipy=2,2′-bipyridine),bpa(bpa=bis(4-pyridyl)amine),and zinc and cobalt chlorides at 160℃.The products were isolated as stable crystalline solids and were characterized by IR spectra,elemental analyses,thermogravimetric analyses,and single-crystal X-ray diffrac-tion analyses.Single-crystal X-ray diffraction analyses revealed that three compounds crystallize in the orthorhom-bic system Pnna(1 and 2)or P21212(3)space groups.All compounds exhibit 3D frameworks.The catalytic perfor-mances in the Henry reaction of these compounds were investigated.Compound 3 exhibited an effective catalytic activity in the Henry reaction at 70℃.CCDC:2339391,1;2339392,2;2339393,3.展开更多
Three zinc(Ⅱ),cobalt(Ⅱ),and nickel(Ⅱ)coordination polymers,namely[Zn(μ^(3-)cpna)(μ-dpea)_(0.5)]_(n)(1),[Co(μ^(3-)cpna)(μ-dpey)_(0.5)]_(n)(2),and[Ni(μ^(3-)cpna)(μ-dpey)_(0.5)(H_(2)O)]_(n)(3),have been construc...Three zinc(Ⅱ),cobalt(Ⅱ),and nickel(Ⅱ)coordination polymers,namely[Zn(μ^(3-)cpna)(μ-dpea)_(0.5)]_(n)(1),[Co(μ^(3-)cpna)(μ-dpey)_(0.5)]_(n)(2),and[Ni(μ^(3-)cpna)(μ-dpey)_(0.5)(H_(2)O)]_(n)(3),have been constructed hydrothermally using H_(2)cpna(5-(4-carboxyphenoxy)nicotinic acid),dpea(1,2-di(4-pyridyl)ethane),dpey(1,2-di(4-pyridyl)ethylene),and zinc,cobalt,and nickel chlorides at 160℃.The products were isolated as stable crystalline solids and were characterized by IR spectra,elemental analyses,thermogravimetric analyses,and single-crystal X-ray diffraction analyses.Single-crystal X-ray diffraction analyses revealed that three compounds crystallize in the triclinic system,space group P1.Compounds 1-3 show 2D layer structures.The catalytic activities in the Knoevenagel condensation reaction of these compounds were investigated.Compounds 1 and 2 exhibit effective catalytic activities in the Knoevenagel condensa-tion reaction at room temperature.For this reaction,various parameters were optimized,followed by the investiga-tion of the substrate scope.CCDC:2335676,1;2335677,2;2335678,3.展开更多
基金supported by the National Natural Science Foundation of China(21571023)
文摘Using symmetrical rigid organic ligand 4,4'-dipyridy(4,4'-bipy),two new Anderson-based supramolecular compounds,namely,[H_(2)(4,4'-bipy)]_(3)·(TeMo_(6)O_(24))·(H_(2)Mo_(6)O_(19))(1)and{Cu_(2)[H(4,4'-bipy)]_(2)(H_(2)O)_(6)(TeMo_(6)O_(24))}·4H_(2)O(2),were synthesized in one-pot under hydrothermal conditions.The compounds 1 and 2 have been tested by IR spectra,elemental analyses and single-crystal X-ray diffraction.Compound 1 contains one discrete Anderson anion,one Lindqvist anion and three 4,4'-bipy organic ligands.The anions and 4,4'-bipy alternate with each other by hydrogen bonding,building a supramolecular 1D chain.Adjacent 1D chains are interlinked through hydrogen bonding interactions to further connect a supramolecular 2D layer.Compounds containing both Anderson and Lindqvist polyanions are not common in the crystal structure of POMs.Compound 2 contains one Anderson anion and two metal-organic subunits{Cu_(2)[H(4,4'-bipy)]_(2)(H_(2)O)_(6)}^(6+)as modifiers.The Anderson anions and{Cu_(2)[H(4,4'-bipy)]_(2)(H_(2)O)_(6)}^(6+)subunits are organized into alternating through hydrogen bonding interactions to construct a supramolecular 1D chain.Additionally,the electrochemical properties of compounds 1 and 2 as well as photocatalytic properties are investigated.Results show that compounds 1 and 2 have photocatalytic activity,which can photocatalyze the degradation of organic dyes MB and AF.Also,compounds 1 and 2 have good electrochemical properties for amperometric detection of NO2-and Cr(Ⅵ).Furthermore,Compound 2 can be used as materials of supercapacitor.
文摘Three zincand cobaltcoordination polymers,namely{[Zn_(2)(μ_(6)-adip)(phen)_(2)]·4H_(2)O}_(n)(1),{[Co_(2)(μ_(6)-adip)(bipy)_(2)]·4H_(2)O}_(n)(2),and[Co_(2)(μ4-adip)(μ-bpa)_(2)]_(n)(3)have been constructed hydrothermally using H4adip(H4adip=5,5′-azanediyldiisophthalic acid),phen(phen=1,10-phenanthroline),bipy(bipy=2,2′-bipyridine),bpa(bpa=bis(4-pyridyl)amine),and zinc and cobalt chlorides at 160℃.The products were isolated as stable crystalline solids and were characterized by IR spectra,elemental analyses,thermogravimetric analyses,and single-crystal X-ray diffrac-tion analyses.Single-crystal X-ray diffraction analyses revealed that three compounds crystallize in the orthorhom-bic system Pnna(1 and 2)or P21212(3)space groups.All compounds exhibit 3D frameworks.The catalytic perfor-mances in the Henry reaction of these compounds were investigated.Compound 3 exhibited an effective catalytic activity in the Henry reaction at 70℃.CCDC:2339391,1;2339392,2;2339393,3.
文摘Three zinc(Ⅱ),cobalt(Ⅱ),and nickel(Ⅱ)coordination polymers,namely[Zn(μ^(3-)cpna)(μ-dpea)_(0.5)]_(n)(1),[Co(μ^(3-)cpna)(μ-dpey)_(0.5)]_(n)(2),and[Ni(μ^(3-)cpna)(μ-dpey)_(0.5)(H_(2)O)]_(n)(3),have been constructed hydrothermally using H_(2)cpna(5-(4-carboxyphenoxy)nicotinic acid),dpea(1,2-di(4-pyridyl)ethane),dpey(1,2-di(4-pyridyl)ethylene),and zinc,cobalt,and nickel chlorides at 160℃.The products were isolated as stable crystalline solids and were characterized by IR spectra,elemental analyses,thermogravimetric analyses,and single-crystal X-ray diffraction analyses.Single-crystal X-ray diffraction analyses revealed that three compounds crystallize in the triclinic system,space group P1.Compounds 1-3 show 2D layer structures.The catalytic activities in the Knoevenagel condensation reaction of these compounds were investigated.Compounds 1 and 2 exhibit effective catalytic activities in the Knoevenagel condensa-tion reaction at room temperature.For this reaction,various parameters were optimized,followed by the investiga-tion of the substrate scope.CCDC:2335676,1;2335677,2;2335678,3.
