摘要
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．
Single crystal of NH 4ZnPO 4 was synthesized from nonaqueous system and its crystal structure was determined using single crystal X ray diffraction. The structure was solved by direct method and refined by full matrix least square method. The crystal is hexagonal with space group P 6 3 and has a unit cell with a =1.068 8(2) nm, c =0 870 6(2) nm, V =0 861 3(2) nm 3, M r=178 38, μ =59 65 cm -1 , Z =8, D c=2 751 g\5cm -3 , R =0 035, R w=0 078 . There are no Zn_O_Zn and P_O_P linkages in the structure. Both zinc and phosphorus atoms are four coordinated to oxygen atoms. The framework structure contains six membered ring direct channels along c axis. The linear Zn_O_P linkage was first found in the structure of the phosphates.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1998年第11期1707-1710,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
吉林大学无机合成与制备化学开放研究实验室资助
