一维螺旋链状配位聚合物[Zn(pam)(bpa)]_n的水热合成及晶体结构

HYDROTHERMAL SYNTHESIS,CRYSTAL STRUCTURE OF 1 D HELICAL CHAIN POLYMEIC COMPLEX [Zn(pam)(bpa)]_n

通过水热反应,合成了标题化合物[Zn(pam)(bpa)]_n(1),(pam=4,4'-亚甲基二(3-羟基-2-萘甲酸), bpa=2,2'-二吡啶胺),对该化合物通过X-射线单晶衍射、红外和荧光光谱进行了结构表征。X-射线单晶衍射表明,目标化合物中的锌(II)离子分别与来自两个不同4,4'-亚甲基二(3-羟基-2-萘甲酸)中的羧基氧和同一个2,2'-二吡啶胺中的两个氮原子配位形成四配位的扭曲四面体结构。该配合物通过锌(II)离子的连接形成有趣的一维螺旋长链,链与链之间通过氢键作用形成二维片状结构。

The complex[Zn(pam)(bpa)]n(1),(pam=4,4’-methelenebis(3-hydroxyl-2-naphthalenecarboxylic acid),bpa=2-(2-pyridylamino)pyridine)was hydrothermally synthesized and characterized by single crystal X-ray diffraction,IR spectra and fluorescence property.The X-ray single crystal diffraction analysis demonstrates that Zn(II)ion is coordinated by two oxygen atoms from two different4,4’-methelenebis(3-hydroxyl-2-naphthalenecarboxylic acid)ligands and two nitrogen atoms from one 2-(2-pyridylamino)pyridine ligand,forming a distorted tetrahedron.The complex contains a 1D interesting helical chain,and a 2D sheet which is managed by hydrogen bonding interactions.