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在Al_2O_3-P_2O_5-六次甲基四胺-H_2O体系中,水热合成出新型磷酸铝分子筛(AlPO_4-CJ_2),培养了单晶,经多晶X射线衍射、四圆单晶结构测定及红外光谱研究证明,AlPO_4-CJ_2具有空旷的骨架结构,沿(100)和(001)方向具有8元环孔道,骨架中Al原子以AlO_5(三角双锥)和AlO_5F(扭曲八面体)形式存在,水分子氧的桥联产生Al—O—Al连接模式。
In Al 2 O 3 -P 2 O 5 -hexamethylenetetramine-H 2 O system, a new type of aluminum phosphate molecular sieve (AlPO 4 -CJ 2) was synthesized by hydrothermal method. Single crystals were grown by X-ray diffraction, tetragonal single crystal structure determination and infrared Spectroscopic studies have shown that AlPO 4-CJ 2 has an open framework structure with 8-membered ring channels in the (100) and (001) directions. The Al atoms in the framework exist in the form of AlO 5 (triangular double cone) and AlO 5 F (twisted octahedron) Bridging of molecular oxygen results in Al-O-Al attachment mode.