Salvadó Miguel A, Pertierra Pilar, Bortun Anatoly I, Trobajo Camino, García José R
Departamento de Química Física y Analítica, Universidad de Oviedo, Spain.
Inorg Chem. 2005 May 16;44(10):3512-7. doi: 10.1021/ic048216f.
Th(2)(PO(4))(2)(HPO(4)).H(2)O was synthesized under wet hydrothermal conditions starting from a mixture of H(3)PO(3) and Th(NO(3))(4).5H(2)O. The crystal structure was solved by powder X-ray diffraction data. The unit cell parameters are a = 6.7023(8) Angstroms, b = 7.0150(8) Angstroms, c = 11.184(1) Angstroms, beta = 107.242(4) degrees, space group P2(1), and Z = 2. The structure consists of layers of both thorium atoms and PO(4) groups, alternating with a layer formed by HPO(4) entities and water molecules. By thermal treatment, this compound turns into Th(4)(PO(4))(4)P(2)O(7), a ceramic already described in the field of the immobilization of tetravalent actinides.
以亚磷酸（H₃PO₃）和硝酸钍（Th(NO₃)₄·5H₂O）的混合物为原料，在湿水热条件下合成了Th(2)(PO(4))(2)(HPO(4))·H₂O。通过粉末X射线衍射数据解析了其晶体结构。晶胞参数为a = 6.7023(8)埃，b = 7.0150(8)埃，c = 11.184(1)埃，β = 107.242(4)°，空间群P2(1)，Z = 2。该结构由钍原子层和PO₄基团层组成，与由HPO₄实体和水分子形成的层交替排列。通过热处理，该化合物转变为Th(4)(PO(4))(4)P(2)O(7)，一种已在四价锕系元素固定领域有所描述的陶瓷材料。
