摘要
以2,6-二氨基吡啶和吡嗪羧酸为原料,设计合成了双吡啶酰胺多功能桥联配体2,6-双吡嗪酰胺吡啶(L),它是通过把氨基官能团连接到芳香羧酸骨架上的、大骨架酰胺类桥联配体,用配体与过渡金属离子在溶剂热下反应合成了[Ni4(LO)4],[Cu4(LO)4]?H2O,{[Cu4(LO)4][Cu4(LO)4]}?2DMF 3个双吡啶酰胺-金属超分子配合物.通过IR、EA、MS、XRD对合成的配合物进行了表征和性能研究.研究了配体由L转变成配体LO反应机理,提出了金属离子配位协助的氧化机理.
Based on 2,6-diaminopyridineand pyrazine-2-carboxylic and multifunctional bispyridylcarboxamide ligands,namely,2,6-bis（pyrazine-2-carboxamido）pyridine（L）were designed and synthesized in this paper. Ligands are subfamily of bis（pyridyl）,and has big framework,originated from the incorporation two amide groups of 2,6-diaminopyridine into the backbones of aromatic arboxylic acids. Using ligands L to reaction with transition metals,we synthesized three metal coordination complexes,namely,[Ni4（LO）4],[Cu4（LO）4]·H2O,{[Cu4（LO）4] [Cu4（LO）4]}·2DMF. The synthesized ligands and the related complexes were characterized by IR,elemental analysis,MS,PXRD and X-ray single crystallography. Then we explored ligands L transform into LO reaction mechanism,and presented metal ion coordination synergic oxidation mechanism.
出处
《河南科学》
2015年第5期722-724,共3页
Henan Science
关键词
双吡啶酰胺配体
配位协助
四核格子配合物
bispyridylcarboxamide ligands
coordination assist
square molecule grid compound
