节点文献
3,3′-(吡啶-3,5)二苯甲酸构筑的Co(Ⅱ)/Ni(Ⅱ)配合物的合成、晶体结构及性质(英文)
Synthesis,Crystal Structure,Magnetic Properties and Catalytic Activity of Co(Ⅱ)/Ni(Ⅱ) Complexes with 3,3′-(Pyridine-3,5-diyl) Dibenzoic Acid
【摘要】 设计、合成了2个配合物:{[Co2(pddb)2(μ2-H2O)(H2O)2]·2DMA·5H2O}n(1)和{[Ni2(pddb)2(μ2-H2O)(H2O)2]·2DMA·5H2O}n(2)(H2pddb=3,3′-(吡啶-3,5)二苯甲酸,DMA=N,N-二甲基乙酰胺),并通过红外光谱(IR),元素分析,热重分析(TG)和单晶X射线衍射确定它们的结构。结构分析表明1和2是异质同构的,其空间构型可简化成(3,6)连接的拓扑结构,其符号为(42·6)·(44·62·88·10)。进一步研究了配合物1和2的固体紫外、磁性及其催化性能。研究表明1和2中的中心金属离子之间存在反铁磁耦合作用,并且1可以作为C-H活化的高效非均相催化剂。
【Abstract】 Two complexes 1~2(1={[Co2(pddb)2( μ2-H2O)(H2O)2]·2 DMA·5 H2O}nand 2={[Ni2(pddb)2( μ2-H2 O)(H2 O)2]·2 DMA·5 H2 O}n, H2 pddb=3,3′-(pyridine-3,5-diyl) dibenzoic acid, DMA=N,N-dimethylacetamide) have been synthesized and identified by Infrared spectroscopy(IR), elemental analysis, thermogravimetric analysis(TG) and single crystal X-ray diffraction. Structural analyses show that 1 and 2 are isostructural, and display a 3 D(3,6)-connected net with the point symbol(42·6)·(44·62·88·10). Besides, the UV-Vis absorption spectra in solid state, the magnetic properties and catalytic activity of 1 ~2 were investigated. Between the proximal Co (Ⅱ)/Ni (Ⅱ) ions, the variable-temperature(2~300 K) magnetic susceptibilities of 1~2 display antiferromagnetic coupling. Furthermore,1 have been verified to be effectual catalysts for the oxidation of arylacycloalkanes in aqueous medium. CCDC:1952526, 1; 1952527, 2.
【Key words】 3,3′-(pyridine-3,5-diyl) dibenzoic acid; complex; crystal structure; magnetic property; heterogeneous catalyst;
- 【文献出处】 无机化学学报 ,Chinese Journal of Inorganic Chemistry , 编辑部邮箱 ,2019年11期
- 【分类号】O641.4
- 【被引频次】2
- 【下载频次】118