Sun Wenlong, Zhang Chunjing, Ma Huiyuan, Pang Haijun, Li Shaobin
Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province, College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040, China.
Dalton Trans. 2014 Nov 21;43(43):16322-7. doi: 10.1039/c4dt02106a.
By choosing V-shaped ligands, Cu2+ cations and isopolymolybdates as starting materials, a novel double helical compound [Cu(H2O)(bimb)]2[β-Mo8O26] (1) (bimb = 1,3-bis(1-imidazoly)benzene) was hydrothermally synthesized and characterized by elemental analyses, single-crystal X-ray diffraction, powder X-ray diffraction and IR spectroscopy. A structural feature is that compound 1 represents the first example of a helical compound based on polyoxometalates, which possesses an unprecedented helical disposition, namely the coexistence of both interconnected and interweaved double helices in one structure. The photocatalytic properties of compound 1 were also investigated in detail and the result of photocatalytic experiments shows that compound 1 can be used as a stable photocatalyst toward the decomposition of the organic pollutant methylene blue.
通过选择V形配体、Cu2+阳离子和同多钼酸盐作为起始原料，水热合成了一种新型双螺旋化合物[Cu(H2O)(bimb)]2[β-Mo8O26] (1)（bimb = 1,3-双(1-咪唑基)苯），并通过元素分析、单晶X射线衍射、粉末X射线衍射和红外光谱对其进行了表征。一个结构特点是化合物1代表了基于多金属氧酸盐的螺旋化合物的首个例子，它具有前所未有的螺旋排列，即在一个结构中同时存在相互连接和相互交织的双螺旋。还详细研究了化合物1的光催化性能，光催化实验结果表明化合物1可作为一种稳定的光催化剂用于分解有机污染物亚甲基蓝。
