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以钴-哒嗪阳离子为模板构筑的多酸基有机-无机杂化材料
Construction of polyoxometalate-based organic-inorganic hybrid materials templated by Co-pyridazine cationic groups
【摘要】 利用水热方法合成了一种Keggin型多酸基有机无机杂化材料,化学式为(Hpydz)Na[Co(pydz)4(H2O)2][SiW12O40]·3H2O(pydz=pyridazine).单晶X-射线研究表明,在该化合物中,Keggin型多阴离子与钠离子连接构筑成三维孔状结构,其中钴-哒嗪阳离子有机基团作为客体分子,通过静电相互作用存在于三维孔道结构中,构筑成有机-无机杂化材料.该化合物属于单斜晶系,空间群为C2/c,晶胞参数a=1.937 7(2)nm,b=1.678 8(2)nm,c=1.768 0(2)nm,α=90°,β=98.612(3)°,γ=90°,V=5.686 51nm3.
【Abstract】 A Keggin-type polyoxometalate-based organic-inorganic hybrid material(Hpydz)Na[Co(pydz)4(H2O)2][SiW12O40]·3 H2O was synthesized by hydrothermal method.Single crystal X-ray diffraction analysis reveals that the Keggin-type polyoxoanions were connected by sodium cations to form three dimensional porous structure.In this three dimensional porous structure,the [Co(Hpydz)4(H2O)2]2+ cationic groups act the guest molecules,and the Keggin-type polyoxoanions surround them,resulting in the organic-inorganic hybrid materials.Title compound crystallizes in the monoclinic system,space group c2/c with a=1.937 7(2)nm,b=1.678 8(2)nm,c=1.768 0(2)nm,α=90°,β=98.612(3)°,γ=90°,V=5.686 51 nm3.
【Key words】 polyoxometalate; three dimensional structure; crystal structure; guest molecule;
- 【文献出处】 分子科学学报 ,Journal of Molecular Science , 编辑部邮箱 ,2017年05期
- 【分类号】O641.4
- 【被引频次】1
- 【下载频次】101