摘要
用水热法合成了吡唑-3-甲酸的两个配合物{[Ag(Py-3-CA)]n(1)和[Pb2(Py-3-CA)4]n(2)}(Py-3-CA=吡唑-3-甲酸),用X射线单晶衍射仪测定了配合物的晶体结构,并对其进行了红外光谱、元素分析、X射线粉末衍射、荧光等性质的表征.结果表明:配合物1属于单斜晶体,P21/c空间群,晶胞参数a=0.859 97(4)nm,b=0.576 70(2)nm,c=1.012 87(4)nm,β=97.673(4)°,V=0.497 83(4)nm3,Z=4;晶体2属于单斜晶体,P21/c空间群,晶胞参数a=1.107 64(3)nm,b=2.366 60(6)nm,c=0.863 20(2)nm,β=110.313(3)°,V=2.122 02(10)nm3,Z=4.配合物中的氢键作用使其自组装成稳定的三维立体结构.荧光测试结果表明,配合物1和2具有荧光性质.
Two complexes of pyrazole-3-carboxylic acid,{ [Ag( Py-3-CA) ]n( 1) and [Pb2( Py-3-CA)4]n( 2) }( Py-3-CA = pyrazole-3-carboxylic acid),were synthesized by hydrothermal method. The complexes were characterized by IR spectroscopy,elemental,fluorescence,X-ray powder diffraction and single-crystal X-ray diffraction analyses.The results showed that the complex 1 belongs to monoclinic crystal,P21/c space group,unit cell parameter a = 0. 85997( 4) nm,b = 0. 576 70( 2) nm,c = 1. 012 87( 4) nm,β = 97. 673( 4) °,V = 0. 49783( 4) nm3,Z = 4,and the complex 2 belongs to monoclinic crystal,P21/c space group,unit cell parameter a = 1. 107 64( 3) nm,b = 2. 366 60( 6)nm,c = 0. 863 20( 2) nm,β = 110. 313( 3) °,V = 2. 122 02( 10) nm3,Z = 4. The complexes were linked to three-dimensional structures by the hydrogen bonds. The results of fluorescence measurements showed that complex 1 and 2had fluorescent properties.
出处
《信阳师范学院学报(自然科学版)》
CAS
北大核心
2017年第4期557-560,共4页
Journal of Xinyang Normal University(Natural Science Edition)
基金
国家自然科学基金项目(21161006)
关键词
吡唑-3-甲酸
晶体结构
荧光
配合物
功能材料
pyrazole-3-carboxylic acid
crystal structure
fluorescence
complex
functional material