bipolyhedra formed by edge-sharing of two [ZrF8]4− trigonal dodecahedra; between each [Zr2F10]2− layer, Ba atoms and H2O molecules ensure the cohesion of the structure. The dehydration process has been studied by TGA and X-ray thermodiffractometry; at 130°C the first H2O molecule reversibly leaves without damaging the crystal structure which becomes isotypic to that of TlZrF5; above 150°C the second H2O molecule
的BaZr单晶2 ˚F 10 ·2H 2从的BaF制备Ò 2 ZrF 4分的混合物在HCl
水溶液。晶体结构已在正交Pnam空间群中求解:a = 7.8974(3)Å,b = 7.9076(3)Å,c = 14.7227(4)Å,R F = 0.017,R I = 0.023表观空间群为P 4 2 2 1 2的晶体。二维结构是由[Zr 2 F 14(001)平面中的无限角共享而建立的通过两个[ZrF 8 ] 4-三角十二面体的边缘共享而形成的] 6-双多面体;在每个[Zr 2 F 10 ] 2-层之间,Ba原子和H 2 O分子可确保结构的内聚。通过TGA和X射线热衍射法研究了脱
水过程。在130°C时,第一个H 2 O分子可逆地离开,而不会破坏与TlZrF 5同型的晶体结构。高于150°C,第二个H 2 O分子连续离开温度达到210°C,在此晶体结构崩溃。