Supramolecular assembly of organic bicapped Keggin polyoxometalate

详细信息    查看全文

• 作者：Han ; Zhangang ; Zhao ; Yulong ; Peng ; Jun ; Ma ; Huiyuan ; Liu ; Qun ; Wang ; Enbo ; Hu ; Ninghai
• 关键词：Supramolecular compound ; Organic capped Keggin structures ; 5-phenyl-2-(4-pyridinyl)pyridine
• 刊名：Journal of Solid State Chemistry
• 出版年：2004
• 出版时间：November, 2004
• 年：2004
• 卷：177
• 期：11
• 页码：4325-4331
• 全文大小：450 K

文摘

Two novel supramolecular assemblies of organic bicapped Keggin polyoxometalates (pbpy)₈H₃[PW₁₂O₄₀]·2H₂O (1) and (pbpy)₄H[PMo₁₂O₄₀(VO)] (2) (pbpy=5-phenyl-2-(4-pyridinyl)pyridine) have been hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction. Crystallographic data for compound (1), C₁₂₈H₁₀₃N₁₆O₄₂PW₁₂, triclinic, space group P1: a=13.4759(8)1: a=11.5377(11)Å, b=12.7552(8)Å, c=14.9599(10)Å, α=72.270(4)°, β=88.916(2)°, γ=67.865(4)°, Z=1, V=1931.0(3)ų. X-ray analyses show that both 1 and 2 represent rare organic bicapped Keggin structures and are supported by supramolecular interactions to extend into a 3D framework. In particular, the unusual structure feature of compound 2 contains a simultaneously organic and inorganic capped structure.