Modified polyoxometalate: a novel monocapped bi-supporting and reduced α-Keggin structure {PMo12O40[Cu(2,2′-bpy)]}[Cu(2,2′-bpy)(en)(H2O)]2

被引:3
|
作者
Lu, Yu-Kun [1 ,2 ]
Li, Ya-Ping [1 ,2 ]
Yang, Ling-Yu [1 ,2 ]
Wang, Wen-Hong [1 ,2 ]
Pan, Yuan [1 ,2 ]
Yan, Wen-Fu [3 ]
Liu, Yun-Qi [1 ,2 ]
机构
[1] China Univ Petr East China, Coll Sci, Qingdao 266580, Shandong, Peoples R China
[2] China Univ Petr East China, State Key Lab Heavy Oil Proc, Qingdao 266580, Shandong, Peoples R China
[3] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Jilin, Peoples R China
来源
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2019年 / 75卷
基金
中国国家自然科学基金;
关键词
modified polyoxometalate; POM; monocopper capped; reduced; alpha-Keggin; crystal structure; photocatalysis; METAL-ORGANIC FRAMEWORKS; HYDROTHERMAL SYNTHESES; CRYSTAL-STRUCTURES; WATER OXIDATION; CU-II; ION; COORDINATION; CLUSTERS;
D O I
10.1107/S2053229619011999
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A novel modified polyoxometalate, {PMo12O40[Cu(2,2'-bpy)]}[Cu(2,2'-bpy)(en)(H2O)](2) [2,2'-bpy is 2,2'-bipyridyl (C10H8N2) and en is ethylenediamine (C2H8N2)], has been synthesized hydrothermally and structurally characterized by elemental analysis, TG, IR, XPS and single-crystal X-ray diffraction. The structural analysis reveals that the compound contains the reduced Keggin polyanion [PMo12O40](6-) as the parent unit, which is monocapped by [Cu(2,2'-bpy)](2+) fragments via four bridging O atoms on an {Mo4O4} pit and bi-supported by two [Cu(2,2'-bpy)(en)(H2O)](2+) coordination cations simultaneously. There exist strong intramolecular pi-pi stacking between the capping and supporting units, which play a stabilizing role during the crystallization of the compound. Adjacent POM clusters are further aggregated to form a three-dimensional supramolecular network through noncovalent forces, hydrogen bonding and pi-pi stacking interactions. In addition, the photocatalytic properties were investigated in detail, and the results indicated that the compound can be used as a photocatalyst towards the decomposition of the organic pollutant methylene blue (MB).
引用
收藏
页码:1344 / +
页数:19
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