A novel Dy^（3＋） coordination compound,（H_2pipz）（H_3O）[Dy（pydc）_3]·11H_2O（1,pipz = piperazine and H_2pydc = pyridine-2,6-dicarboxylic acid）,has been hydrothermally synthesized and characterized by X-ray...A novel Dy^（3＋） coordination compound,（H_2pipz）（H_3O）[Dy（pydc）_3]·11H_2O（1,pipz = piperazine and H_2pydc = pyridine-2,6-dicarboxylic acid）,has been hydrothermally synthesized and characterized by X-ray single-crystal diffraction,elemental analysis. It is interesting that the packing structure of compound 1 contains 22-core water clusters. Compound 1 is extended into a threedimensional supramolecular structure via O···H···O hydrogen bonding interactions. Furthermore,the luminescent property of compound 1 was also investigated.展开更多
A dinuclear dysprosium（III） compound,[Dy2（μ2-OH）2（QLC）4（1,10-phen）2]·4H2O（1）（QLC-= 2-quinolinecarboxylate and 1,10-phen = 1,10-phenanthroline）,was synthesized and structurally and magnetically charac...A dinuclear dysprosium（III） compound,[Dy2（μ2-OH）2（QLC）4（1,10-phen）2]·4H2O（1）（QLC-= 2-quinolinecarboxylate and 1,10-phen = 1,10-phenanthroline）,was synthesized and structurally and magnetically characterized.Compound 1 crystallizes in triclinic system,space group P1 with a = 10.9439（3）,b = 11.2823（3）,c = 12.2323（4） ？,α = 107.446（3）,β = 91.700（3）,γ = 91.511（2）°,V = 1439.25（8） A3,Z = 1,C（64）H（50）N8O（14）Dy2,Mr = 1480.12,Dc = 1.708 g/cm3,μ = 2.653 mm-1 and F（000） = 734.The final R = 0.0366 and w R = 0.0736 for 5816 observed reflections with I 〉 2σ（I）.Compound 1 contains the mononuclear [Dy（QLC）2（1,10-phen）] subunit formed from one 1,10-phen and two QLC-ligands chelating Dy（III） ion.Two mononuclear [Dy（QLC）2（1,10-phen）] subunits are bridged by a pair of μ2-OH groups to give a centrosymmetric dinuclear [Dy2（μ2-OH）2（QLC）4（1,10-phen）2] with each Dy（III） ion being eight-coordinated.Detailed susceptibility measurements revealed that compound 1 does not show slow magnetic relaxation under zero direct-current field but exhibits field-induced slow magnetic relaxation under 2 kOe applied field.展开更多
基金financially supported by the Foundation of Fujian Educational Committee(JA14348)
文摘A novel Dy^（3＋） coordination compound,（H_2pipz）（H_3O）[Dy（pydc）_3]·11H_2O（1,pipz = piperazine and H_2pydc = pyridine-2,6-dicarboxylic acid）,has been hydrothermally synthesized and characterized by X-ray single-crystal diffraction,elemental analysis. It is interesting that the packing structure of compound 1 contains 22-core water clusters. Compound 1 is extended into a threedimensional supramolecular structure via O···H···O hydrogen bonding interactions. Furthermore,the luminescent property of compound 1 was also investigated.
基金Supported by the National Natural Science Foundation of China(No.21561015)
文摘A dinuclear dysprosium（III） compound,[Dy2（μ2-OH）2（QLC）4（1,10-phen）2]·4H2O（1）（QLC-= 2-quinolinecarboxylate and 1,10-phen = 1,10-phenanthroline）,was synthesized and structurally and magnetically characterized.Compound 1 crystallizes in triclinic system,space group P1 with a = 10.9439（3）,b = 11.2823（3）,c = 12.2323（4） ？,α = 107.446（3）,β = 91.700（3）,γ = 91.511（2）°,V = 1439.25（8） A3,Z = 1,C（64）H（50）N8O（14）Dy2,Mr = 1480.12,Dc = 1.708 g/cm3,μ = 2.653 mm-1 and F（000） = 734.The final R = 0.0366 and w R = 0.0736 for 5816 observed reflections with I 〉 2σ（I）.Compound 1 contains the mononuclear [Dy（QLC）2（1,10-phen）] subunit formed from one 1,10-phen and two QLC-ligands chelating Dy（III） ion.Two mononuclear [Dy（QLC）2（1,10-phen）] subunits are bridged by a pair of μ2-OH groups to give a centrosymmetric dinuclear [Dy2（μ2-OH）2（QLC）4（1,10-phen）2] with each Dy（III） ion being eight-coordinated.Detailed susceptibility measurements revealed that compound 1 does not show slow magnetic relaxation under zero direct-current field but exhibits field-induced slow magnetic relaxation under 2 kOe applied field.
