| 一系列基于杂多酸构筑的配合物的合成,晶体结构及光催化性能 |
| Hydrothermal Syntheses, Crystal Structures and Catalytic Performance of a Series of Polyoxometalate-Based Hybrid Compounds |
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| 摘要: 通过引入菲咯啉衍生物配体并改变反应体系中的金属盐,得到了3个新的含有杂多酸的金属-有机配合物(MOCs),{[Cu2(Do)2(H2O)4(SiW12O40)]·10H2O}n(1),[Ag3(Do)5][Ag(Do)2](SiW12O40)(2),[Cu2(Do)4(H2O)2Cl](PMo12O44)·2CH3OH(3)(Do=1,10-菲咯啉-5,6-二酮)。在配合物1中,Keggin型杂多酸与Cu(Ⅱ)连接形成了二维网状结构。配合物2中的Ag(Ⅰ)显示了多种不同的配位模式,构建了一个新颖的线性三核簇状结构。在配合物3中,Cu(Ⅱ)通过氯原子连接形成了一个双核结构。结构多样性表明金属离子与第二配体Do在构建不同结构的POMs中起到很重要的作用。光催化研究表明,配合物3不仅能在UV光照射下有效地催化降解罗丹明B(RhB),而且很稳定,能够从反应体系中分离以循环利用。 |
| 关键词: 杂多酸 水热合成 晶体结构 催化性能 |
| 基金项目: 国家自然科学基金(No.21507047)、中国博士后基金(No.2015M571695)、江苏省博士后科学基金(No.1401176C)和江苏大学高级人才启动基金项目(No.14JDG053)资助。 |
| Abstract: By using phenanthroline ligand and changing the metal salts in the reaction system, three new Keggin-based metal-organic complexes(MOCs), {[Cu2(Do)2(H2O)4(SiW12O40)]·10H2O}n(1), [Ag3(Do)5][Ag(Do)2](SiW12O40)(2), [Cu2(Do)4(H2O)2Cl](PMo12O44)·2CH3OH(3)(Do=1, 10-phenanthroline-5, 6-dione), have been successfully synthesized under hydrothermal conditions.In compound 1, the Keggin-type POMs act as highly connected inorganic ligands and connect Cu(Ⅱ) ions to exhibit 2D network, which are modified by the Do polymeric motifs.For compound 2, the Ag(Ⅰ) centers exhibit various coordination types, and are linked by Do ligand to construct a linear trinuclear cluster structure.In compound 3, Cu(Ⅱ) ions are connected by one chlorine ion to form a binuclear structure.The structural diversities indicate that the metal ions and the secondary ligand Do play an important role in the assembly and the structures of different POMs.Photocatalytic studies indicate that compound 3 is not only actively photocatalytic for degradation of Rhodamine B(RhB) under UV light irradiation, but also very stable and easily separated from the reaction system for reuse.CCDC:1039184, 1; 1038117, 2; 1033951, 3. |
| Keywords: polyoxometalates hydrothermal synthesis crystal structure catalytic properties |
| 投稿时间：2015-11-03 修订日期：2015-12-28 |
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| 王蕾,顾晓敏,叶丹丹,张文莉,倪良.一系列基于杂多酸构筑的配合物的合成,晶体结构及光催化性能[J].无机化学学报,2016,32(4):691-698. |
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