Heteroleptic 1D coordination polymers: 5-Coordinated zinc(II) polymer as an efficient transesterification catalyst
作者:Manzoor A. Wani、Ashish Kumar、Mrituanjay D. Pandey、Rampal Pandey
DOI:10.1016/j.poly.2017.01.027
日期:2017.4
FT-IR, UV–vis, emission, TGA and PXRD analysis. The structure of 1 has been verified by single crystal X-ray diffraction analysis. The structural data revealed the 5-coordinated heteroleptic polymeric framework is exclusively extended through the H3CCB carboxylate group and strong N,N,N-chelating TPPZ ligand acts as a branch terminating site. Notably, the structure of 1 is comprised of one unit of each
摘要合成了三种一维配位聚合物(CPs)[Zn(TPPZ)(HCCB)] n·DMF·H2O(1)[Cd(TPPZ)(HCCB)] n(2)和[Co(TPPZ)(HCCB) )] n(3),基于N,N,N螯合的κ3-2,3,5,6-四(2-吡啶基)吡嗪(TPPZ)并聚合羧酸酯(-COO-)3-(羧基-已经描述了使用溶剂热法的甲基氨基)-4-氯苯甲酸(H3CCB)配体。通过令人满意的元素分析,FT-IR,UV-vis,发射,TGA和PXRD分析,对CP进行了充分的表征。1的结构已通过单晶X射线衍射分析验证。结构数据表明,5位配位的杂多聚体聚合物骨架仅通过H3CCB羧酸酯基团延伸,并且强N,N,N螯合的TPPZ配体充当分支终止位点。尤其,1的结构在其晶格中由一种单位的每种H2O和DMF溶剂组成。相比之下,PXRD研究表明,在热脱溶剂1之后,2和3排除了晶格溶剂。此外,具有5个配位的Zn(II)中