摘要
吡啶羧酸类配体由于具有羧酸和吡啶氮的双重配位功能,受到极大的关注。笔者从配体3,3′-(吡啶-3,5-二)二苯甲酸(H2pddb)着手,在溶剂热条件下合成出一个结构新颖的三维微孔配合物1{[Mn2(pddb)2].H2O}n,并用X-射线单晶衍射、元素分析和红外光谱等手段进行表征。结构分析表明配合物框架是由次级结构单元(SBU)—Mn—COO—Mn—链与配体骨架相连形成的。对配合物1的热稳定性和磁性的研究结果表明了SBU中的金属锰离子之间存在弱反铁磁耦合作用。
Recent decades,pyridine carboxylate ligands have been of increasing interest due to the multiple functions of carboxylate and pyridine.We synthesized a new 3Dmicroporous framework 1{[Mn2（pddb）2].H2O}n,based on 3,5-bis（3-carboxyphenyl）pyridine（H2pddb）,which was characterized by element analysis,IR,and X-ray single crystal diffraction measurements.The structure analysis showed that—Mn—COO—Mn—secondary Building units（SBUs）link with the skeleton of H2pddb,to generate the 3Dframework.In addition,thermo stability and magnetic property about the complex have been studied;the fitting results of magnetic data indicated the antiferromagnetic exchange between metal centers in SBU.
出处
《中国科技论文》
CAS
北大核心
2013年第9期911-914,共4页
China Sciencepaper
基金
高等学校博士学科点专项科研基金资助项目(20124101110002)
关键词
配合物
吡啶羧酸类
次级结构单元
热稳定性
磁性
coordination polymer
pyridine carboxylate ligand
secondary Building units（SBU）
thermo stability
magnetic property
