Three new lanthanide coordination polymers[Ln(bppc)2(suc)0.5(H2O)]n·nH2O(Ln=Eu(1),Ln=Dy(2),Ln=Tb(3),Hbppc=2,6-bis(pyrazin-2-yl)pyridine-4-carboxylate,H2suc=succinic acid)have been hydrothermally synthesized and s...Three new lanthanide coordination polymers[Ln(bppc)2(suc)0.5(H2O)]n·nH2O(Ln=Eu(1),Ln=Dy(2),Ln=Tb(3),Hbppc=2,6-bis(pyrazin-2-yl)pyridine-4-carboxylate,H2suc=succinic acid)have been hydrothermally synthesized and structurally characterized.These compounds are isostructural and crystallize in triclinic P1 space group.The Ln(Ⅲ)ions are eightcoordinated with dodecahedral coordination geometry.Ln(Ⅲ)cations are linked by carboxylate groups from(bppc)-ligands to form one-dimensional ring chains,which are further connected by the carboxylate groups of(bppc)-and(suc)2-ligands to extend a 2D layer structure.These coordination polymers display the characteristic emission bands of Ln(Ⅲ)ions in the solid state.展开更多
基金Supported by the Key Scientific Research Project of Education Department of Shaanxi Province(17JS027)the team of syngas catalytic conversion of Shaanxi university of Technology。
文摘Three new lanthanide coordination polymers[Ln(bppc)2(suc)0.5(H2O)]n·nH2O(Ln=Eu(1),Ln=Dy(2),Ln=Tb(3),Hbppc=2,6-bis(pyrazin-2-yl)pyridine-4-carboxylate,H2suc=succinic acid)have been hydrothermally synthesized and structurally characterized.These compounds are isostructural and crystallize in triclinic P1 space group.The Ln(Ⅲ)ions are eightcoordinated with dodecahedral coordination geometry.Ln(Ⅲ)cations are linked by carboxylate groups from(bppc)-ligands to form one-dimensional ring chains,which are further connected by the carboxylate groups of(bppc)-and(suc)2-ligands to extend a 2D layer structure.These coordination polymers display the characteristic emission bands of Ln(Ⅲ)ions in the solid state.
