Two novel hybrid inorganic–organic compounds based on Wells-Dawson polyanion and transition metal (TM) complex with one-dimensional structure: Hydrothermal synthesis and characterization

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• 作者：Aixiang Tian ; Zhangang Han ; Jun Peng ; Baoxia Dong ; Jingquan Sha ; Bin Li
• 关键词：Wells-Dawson ; Pre-prepared polyoxometalate ; Hydrothermal synthesis ; Chain
• 刊名：Journal of Molecular Structure
• 出版年：2007
• 出版时间：30 April 2007
• 年：2007
• 卷：832
• 期：1-3
• 页码：117-123
• 全文大小：953 K

文摘

Two new inorganic–organic hybrid materials constructed from Wells-Dawson polyanion clusters and secondary-metal complex subunits, [Zn(phen)₂(H₂O)₂] [{Zn(phen)₂}{Zn(phen)₂(H₂O)} {P₂W₁₈O₆₂}]·8H₂O (1) and [Cd(phen)₂(H₂O)₂] [{Cd(phen)₂}{Cd(phen)(H₂O)₃} {P₂W₁₈O₆₂}]·4H₂O (2), have been prepared under hydrothermal conditions and characterized by single-crystal X-ray diffraction, elemental analysis, IR, thermogravimetric analysis, and photoluminescence spectrum. Single-crystal X-ray diffractions reveal that both the compounds exhibit 1D infinitely linear chains of polyanions polymerizing through the bridging coordination cation M(phen)₂²⁺ (M = Zn for 1, Cd for 2; phen = 1,10′-phenanthroline). The one-dimensional chains are assembled into three-dimensional networks by π  π stacking and hydrogen bonding interactions. Both (1) and (2) exhibit photoluminescence properties at room temperature.