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水热法合成了8个稀土配合物{Ln(TDA)1.5(H2O)2}n(Ln=Pr(1a),Nd(2a))和{Ln(TDA)(Ac)(H2O)}n(Ln=Pr(1),Nd(2),Eu(3),Gd(4),Tb(5),Dy(6);TDA=2,5-噻吩二羧酸阴离子),结构分析显示配合物1a和2a是属于C2/c的三维框架结构.化合物1–6是在过量的乙酸铵的反应体系中得到的不同于配合物1a和2a的三维框架结构.配合物4–6的磁性研究表明:配合物4中相邻的Gd3+之间存在弱的反铁磁相互作用而配合物6显示出三维框架结构中较少的慢磁弛豫行为.
(Ln = Pr (1a), Nd (2a)) and {Ln (TDA) (Ac) (H2O)} n Ln = Pr (1) Nd (2) Eu (3) Gd (4) Tb (5) Dy (6) TDA = 2,5-thiophene dicarboxylate anion. 1a and 2a are three-dimensional framework structures belonging to C2 / c Compounds 1-6 are three-dimensional framework structures different from complexes 1a and 2a obtained in an excess of ammonium acetate reaction system Magnetic studies of complexes 4-6 show that : Complex 4 has a weak antiferromagnetic interaction between adjacent Gd3 + complexes while complex 6 shows less slow magnetic relaxation behavior in the three-dimensional framework structure.