Song Xiaowei, Li Jiyang, Guo Yanan, Pan Qinhe, Gan Lin, Yu Jihong, Xu Ruren
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
Inorg Chem. 2009 Jan 5;48(1):198-203. doi: 10.1021/ic801405e.
Three transitional-metal-substituted aluminophosphate molecular sieves, |(C3N2H5)8|[M8Al16P24O96] (denoted MAPO-LAU, M = Co, Mn, Zn), have been synthesized under solvothermal conditions in the presence of imidazole as the structure-directing agent. Their structures are determined by single-crystal X-ray diffraction and further characterized by powder X-ray diffraction, inductively coupled plasma, thermogravimetric, and diffuse reflectance spectroscopy (UV-vis) analyses. The structure of MAPO-LAU is based on the strict alternation of MO4/AlO4 tetrahedra and PO4 tetrahedra through vertex oxygen atoms. Their frameworks are analogous to the zeotype LAU structure in which 33% of the aluminum sites are replaced by transitional-metal ions. The protonated imidazole cations resided in the 10-ring channels. These compounds show photoluminescent properties due to the existence of imidazole molecules in the structures. Magnetic measurements reveal that there is very weak antiferromagnetic interaction among the metal centers of MnAPO-LAU.
三种过渡金属取代的磷酸铝分子筛|(C3N2H5)8|[M8Al16P24O96]（表示为MAPO-LAU，M = Co、Mn、Zn）已在溶剂热条件下，以咪唑作为结构导向剂合成。通过单晶X射线衍射确定其结构，并通过粉末X射线衍射、电感耦合等离子体、热重分析和漫反射光谱（紫外可见）分析进一步表征。MAPO-LAU的结构基于MO4/AlO4四面体和PO4四面体通过顶点氧原子的严格交替。它们的骨架类似于沸石型LAU结构，其中33%的铝位点被过渡金属离子取代。质子化的咪唑阳离子位于10元环通道中。由于结构中存在咪唑分子，这些化合物表现出光致发光特性。磁性测量表明，MnAPO-LAU的金属中心之间存在非常弱的反铁磁相互作用。
