论文部分内容阅读
从非水体系中制得了NH4ZnPO4单晶,并用X射线测定了晶体结构.晶体属六方晶系,P63空间群.晶胞参数:a=1.0688(2)nm,c=0.8706(2)nm,Z=8,Dc=2.751g·cm-3.结构中的锌和磷均为四面体配位,且严格交替排列,无Zn_O_Zn和P_O_P联结方式.骨架中的氧均为桥氧.骨架结构中存在沿c轴方向伸展的规则的六元环直孔道.与其它磷酸盐不同的是,我们在该晶体骨架中首次观察到直线型的Zn_O_P联结方式.
NH4ZnPO4 single crystals were prepared from non-aqueous system and the crystal structure was determined by X-ray diffraction. Crystal is a hexagonal system, P63 space group. Cell parameters: a = 1.0688 (2) nm, c = 0.8706 (2) nm, Z = 8 and Dc = 2.751 g · cm-3. The structure of zinc and phosphorus are tetrahedral coordination, and strictly arranged alternately, without Zn_O_Zn and P_O_P connection. The oxygen in the skeleton is bridge oxygen. There is a regular hexagonal ring straight channel extending in the c-axis direction in the skeleton structure. Unlike other phosphates, we first observed a linear Zn_O_P linkage in this crystal framework.