摘要
A new Nd（Ⅲ） coordination polymer [Nd（pidc）（H2O）4]·pidc-·7H2O（1,pidc2-= 2-py-ridyl-4,5-imidazoledicarboxylate） has been synthesized by solvothermal reaction at 120 ℃ and structurally characterized.The complex belongs to triclinic,space group P with a = 9.022（2）,b = 13.731（3）,c = 13.782（3） ,α = 70.87（3）,β = 71.71（3）,γ = 71.71（3）,V = 1488.6（7） 3,Z = 2,Dc = 1.798 g/cm3,S = 1.04,μ = 1.839 mm-1,F（000） = 814,Mr = 805.76,Rint = 0.081 and wR = 0.1644 for 5242 observed reflections（I 〉 2（I））.Each Nd3＋ ion is nine-coordinated by five O atoms from three pidc ligands,and four O atoms from lattice water molecules.Each pidc is coordinated to three Nd3＋ ions with a μ3-κO：κO＇：κO＂,κO＇＂-μ2 coordination mode into 1D chains,which can be further built into a 3D framework through intermolecular N-H···O and O-H···O hydrogen bonds.Photolu-minescent studies have shown that 1 exhibits emission at 439 nm（λex = 395 nm）.
A new Nd（Ⅲ） coordination polymer [Nd（pidc）（H2O）4]·pidc-·7H2O（1,pidc2-= 2-py-ridyl-4,5-imidazoledicarboxylate） has been synthesized by solvothermal reaction at 120 ℃ and structurally characterized.The complex belongs to triclinic,space group P with a = 9.022（2）,b = 13.731（3）,c = 13.782（3） ,α = 70.87（3）,β = 71.71（3）,γ = 71.71（3）,V = 1488.6（7） 3,Z = 2,Dc = 1.798 g/cm3,S = 1.04,μ = 1.839 mm-1,F（000） = 814,Mr = 805.76,Rint = 0.081 and wR = 0.1644 for 5242 observed reflections（I 〉 2（I））.Each Nd3＋ ion is nine-coordinated by five O atoms from three pidc ligands,and four O atoms from lattice water molecules.Each pidc is coordinated to three Nd3＋ ions with a μ3-κO：κO＇：κO＂,κO＇＂-μ2 coordination mode into 1D chains,which can be further built into a 3D framework through intermolecular N-H···O and O-H···O hydrogen bonds.Photolu-minescent studies have shown that 1 exhibits emission at 439 nm（λex = 395 nm）.
基金
Funded by the National Natural Science Foundation of China (No.21101035)
Natural Science Foundation of Guangxi Province (2010GXNSFF013001)
State Key Laboratory of Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources,Ministry of Science and Technology of China (CMEMR2011-23)
the Natural Science Foundation of the Education Committee of Guangxi Province (No.201010LX074)
