摘要
采用有机配体2-(邻溴)苯基-4,5-咪唑二羧酸(o-BrPhH_3IDC)与六水合硝酸铽,在草酸铵的存在下,通过溶剂热反应,成功制备了一个未见报道的二维发光金属有机框架{[Tb_2(o-BrPhHIDC)_2(C_2O_4)(H_2O)_3]·5H_2O}n(1)。采用元素分析、红外光谱、PXRD以及单晶衍射技术测试了其分子结构。结构分析表明:它是一个由配体o-BrPhHIDC_2-和辅助配体草酸根桥连Tb(Ⅲ)形成的格子状的2D结构。研究了1在空气气氛下的热分解特点以及固态荧光光谱,进而测试了其小分子识别性能。
A new two-dimensional metal-organic framework{[Tb2(o-BrPhHIDC)2(C2 O4 )(H2 O)3 ]·5H2 O}n(1)was successfullysolvothermally synthesized by the reaction of organic ligand, 2-( 2-bromophenyl)-1H-imidazole-4, 5-dicarboxylic acid ( o-BrH3 PhIDC)with Tb(NO3 )3·6H2 O in the presence of ammonium oxalate. The polymer 1 was characterized by elemental analysis,thermogravimetric analysis,IR spectroscopy,PXRD and single crystal X-ray diffraction. The structural analyses indicate that 1 is a2D grid structure in which the adjacent metal ions are linked by o-BrPhH3 IDC and C2 O42- ligands. The thermal and luminescentproperties under air were determined. Furthermore,its chemical sensing properties to small molecules were investigated.
作者
赵益诚
安子龙
赵黎嘉
李纲
ZHAO Yi-chen;AN Zi-long;ZHAO Li-jia;LI Gang(College of Chemistry and Molecular Engineering,Zhengzhou University,Zhengzhou 450001,China;Zhengzhou New Feng Yang Foreign Language School,Zhengzhou 450001,China)
出处
《化学研究与应用》
CAS
CSCD
北大核心
2016年第7期1008-1012,共5页
Chemical Research and Application
基金
国家自然基金资助项目(21571156)资助通讯
