摘要
由水热法合成了2个配合物[Co(1,2,4-HBTC)(tib)](1)和[Ni4(1,2,4-BTC)2(tib)4(H2O)2]·(1,2,4-HBTC).9H2O(2)(1,2,4-H3BTC=1,2,4-苯三甲酸,tib=1,3,5-三(1-咪唑基)苯),并用元素分析、红外光谱、X-射线单晶衍射及热重分析等对其进行了表征。晶体结构分析结果表明:配合物1是由Co(Ⅱ)和tib连接形成的二维层状结构,1,2,4-HBTC2-作为端基配体与Co(Ⅱ)配位,而配合物2是通过1,2,4-BTC3-连接[Ni(tib)]2+二维网形成最终的二维多层结构,这2个化合物最终均被氢键连接形成三维超分子结构。
Two new coordination complexes [Co(1,2,4-HBTC)(tib)](1) and [Ni4(1,2,4-BTC)2(tib)4(H2O)2]·(1,2,4-HBTC)·9H2O(2)(1,2,4-H3BTC=1,2,4-benzenetricarboxylic acid,tib=1,3,5-tris(1-imidazolyl)benzene) were obtained by hydrothermal reactions of 1,2,4-H3BTC and tib with corresponding metal salts.Single crystal X-ray diffraction analysis revealed that each tib ligands connect three metal atoms to form two-dimensional(2D) networks in 1 and 2.On the other hand,each 1,2,4-HBTC2-coordinates to one Co(Ⅱ)atom as a terminal ligand in 1,while in 2,two 1,2,4-BTC3-ligands link four Ni(Ⅱ)atoms which further connect [Ni(tib)]2+ 2D networks to result in formation of multi-layered 2D structure.Complexes 1 and 2 are finally extended to three-dimensional(3D) supramolecular structures by hydrogen bonding interactions.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2011年第5期971-976,共6页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金重点项目(No.20731004)资助
关键词
1
2
4-苯三甲酸
1
3
5-三(1-咪唑基)苯
晶体结构
水热合成
1
2
4-benzenetricarboxylic acid
1
3
5-tris(1-imidazolyl)benzene acid
crystal structure
hydrothermal synthesis