Merrill Crystal A, Cheetham Anthony K
Materials Research Laboratory, University of California, Santa Barbara, California 93106-5121, USA.
Inorg Chem. 2005 Jul 25;44(15):5273-7. doi: 10.1021/ic0502269.
A three-dimensional iron(III) diphosphonate, Fe(III)(H(2)O)(HO(3)P(CH(2))(2)PO(3)), I, has been synthesized hydrothermally and characterized by single-crystal X-ray diffraction. The compound crystallizes in the orthorhombic space group Pbca (no. 61) where a = 9.739(5) A, b = 9.498(5) A, c = 15.940(8) A, V = 1474.4(1) A(3), Z = 8, and R(1) = 0.0380. The structure consists of inorganic sheets pillared by the 1,2-ethylenediphosphonate groups. The sheets are composed of Fe(H(2)O)O(5) octahedra connected through PO(3)C tetrahedra. The corresponding isostructural aluminum (II) and gallium (III) compounds were also synthesized and indexed: II, a = 9.534(1) A, b = 9.255(2) A, c = 15.724(1) A, V = 1387.5(1) A(3); III, a = 9.670(1) A, b = 9.357(2) A, c = 15.862(4) A, V = 1435.4(1) A(3).
通过水热法合成了一种三维二膦酸铁（III）化合物Fe(III)(H(2)O)(HO(3)P(CH(2))(2)PO(3))，I，并通过单晶X射线衍射对其进行了表征。该化合物结晶于正交空间群Pbca（编号61），其中a = 9.739(5) Å，b = 9.498(5) Å，c = 15.940(8) Å，V = 1474.4(1) Å(3)，Z = 8，R(1) = 0.0380。其结构由1,2 - 乙二膦酸根基团支撑的无机层组成。这些层由通过PO(3)C四面体连接的Fe(H(2)O)O(5)八面体构成。还合成并测定了相应的同构铝（II）和镓（III）化合物的晶体参数：II，a = 9.534(1) Å，b = 9.255(2) Å，c = 15.724(1) Å，V = 1387.5(1) Å(3)；III，a = 9.670(1) Å，b = 9.357(2) Å，c = 15.862(4) Å，V = 1435.4(1) Å(3)。
