一系列基于吡啶-2,3-二羧酸的铜-稀土异金属配位聚合物（英文）

A series of copper-lanthanide heterometallic coordination polymers based on pyridine-2,3-dicarboxylic acid

通过LnCl_3·n H_2O,Cu(NO_3)_2·3H_2O,吡啶-2,3-二羧酸(2,3-H_2pydc)和N,N'-二(4H-1,2,4-三唑)己酰胺(dth)的水热反应合成了一系列铜-稀土异金属配位聚合物(CPs),即[Ln Cu(2,3-pydc)_2(adi)_(0.5)(H_2O)_3]·2H_2O[Ln=La(1),Pr(2),Nd(3),H_2adi=己二酸]和[Ln_2Cu_3(2,3-pydc)_6(H_2O)_(10)]·8H_2O[Ln=Sm(4),Eu(5),Gd(6),Tb(7),Dy(8),Er(9),Yb(10),Lu(11)]。通过单晶X-射线衍射,粉末X-射线衍射,元素分析,红外和热重分析对其表征。配位聚合物1-11显示两种具有不同拓扑的三维(3D)结构。adi阴离子源于dth的原位水解。研究了配合物1-11的电化学性质被研究。

A series of copper-lanthanide heterometallic coordination polymers( CPs) were synthesized by the hydrothermal reactions of LnCl_3·n H_2 O,Cu( NO_3)_2·3H_2O,pyridine-2,3-dicarboxylic acid( 2,3-H_2pydc),and N,N'-di( 4H-1,2,4-triazole) hexanamide( dth),namely,[Ln Cu( 2,3-pydc)_2( adi)_(0. 5)( H_2O)_3]·2H_2O[Ln = La( 1),Pr( 2),Nd( 3),H_2 adi = adipic acid] and [Ln_2Cu_3( 2,3-pydc)_6( H_2O)_(10)]·8H_2O [Ln =Sm( 4),Eu( 5),Gd( 6),Tb( 7),Dy( 8),Er( 9),Yb( 10),Lu( 11) ]. They were characterized by singlecrystal X-ray diffraction,powder X-ray diffraction,elemental analysis,IR,and thermogravimetric analysis. CPs1-11 show two types of three-dimensional( 3D) architectures with different topologies. The adi anion is derived from the situ hydrolysis of dth. The electrochemical properties of 1-11 were studied.