摘要
在水和乙醇混合溶液中合成了配合物{[Ni(DNBC)2(Im)(H2O)]·0.25H2O}n(DNBC=3,5-二硝基苯甲酸,Im=咪唑),并进行了元素分析、红外光谱、热重分析(TG)对其进行了表征,用单晶X-射线衍射测定了配合物的晶体结构。结果表明此配合物属正交晶系,空间群为Pbca,a=1.5022(6)nm,b=1.5146(6)nm,c=1.9269(7)nm,V=4.384(3)nm3,Z=8,F(000)=2320。配合物中金属镍原子采用五配位,分别与4个氧原子和1个咪唑氮原子配位,形成1个扭曲的四方锥体。
The complex {[Ni(DNBC)2(Im)(H2O)]·0.25H2O}n(DNBC=3,5-dinitrobenzoic acid,Im=imidazole) was synthesized in water-ethyl alcohol mixture solution and characterized by elemental analysis,IR and thermo-gravimetry(TG).Its crystal structure was determined by single crystal X-ray diffraction.The complex crystallized crystallizes in the Orthorhombic system with space group Pbca,a=1.502 2(6) nm,b=1.514 6(6) nm,c=1.926 9(7) nm,V=4.384(3) nm3,Z=8,F(000)=2 320.The crystal structure shows the complex has a 1D chain networks,where each Ni(Ⅱ) is in 4O+N coordination modes,each five-coordinated Ni(Ⅱ) ions form a distorted square-pyramidal geometry,oxygen atoms occupy axial center positions.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2011年第7期1291-1294,共4页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.20671077)
甘肃省自然科学基金(No.2008-1-164)资助项目
关键词
3
5-二硝基苯甲酸
咪唑
配位聚合物
晶体结构
3
5-dinitrobenzoic acid
imidazole
coordination polymer
crystal structure