Formation of helix-containing rods in a hybrid inorganic–organic material

详细信息    查看全文

• 作者：Zhanhui Yuan ; William Clegg ; Martin P. Attfield
• 关键词：Aluminum ; Diphosphonate ; Helical structures ; Solvothermal synthesis ; Hybrid inorganic– ; organic ; Octahedral
• 刊名：Journal of Solid State Chemistry
• 出版年：2009
• 出版时间：November 2009
• 年：2009
• 卷：182
• 期：11
• 页码：3049-3054
• 全文大小：366 K

文摘

The novel aluminum ethylenediphosphonate fluoride, [HN(CH₂CH₂NH₃)₃][Al₂(O₃PCH₂CH₂PO₃)₂F₂]·H₂O (1) (monoclinic, P2₁/n, a=12.145(4) Å, b=9.265(3) Å, c=20.422(6) Å, β=104.952(4)°, Z=3, R₁=0.092, wR₂=0.196) has been synthesized by solvothermal methods in the presence of tris(2-aminoethyl)amine and its structure determined using single microcrystal X-ray diffraction data. Compound 1 is a one-dimensional extended chain structure composed of well-separated anionic [Al₂(O₃PCH₂CH₂PO₃)₂F₂]p>4−p> rods containing helical chains of corner-shared cis-AlO₄F₂ octahedra at their core. The charge-compensating tris(2-aminoethyl)ammonium cations separate the anionic [Al₂(O₃PCH₂CH₂PO₃)₂F₂]p>4−p> rods that contain either left- or right-handed helical chains. The incorporation of the organic components into this hybrid material has aided the adoption of one-dimensionality by the compound and defined the pitch of the helical AlO₄F chain.