Extended Polyoxometalate Framework Solids: Two Mn(II)-Linked {P8W48} Network Arrays

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• 作者：Scott G. Mitchell ; Thomas Boyd ; Haralampos N. Miras ; De-Liang Long ; Leroy Cronin
• 刊名：Inorganic Chemistry
• 出版年：2011
• 出版时间：January 3, 2011
• 年：2011
• 卷：50
• 期：1
• 页码：136-143
• 全文大小：1061K
• 年卷期：v.50,no.1(January 3, 2011)
• ISSN：1520-510X

文摘

Two polyoxometalate open framework (POMOF) materials have been synthesized using a secondary building unit (SBU) approach that facilitates the convergent assembly of multidimensional framework materials using a preassembled anionic SBU {P₈W₄₈}, with integrated 鈥減ore鈥?1 nm in diameter, and electrophilic manganese {Mn²⁺} linkers. This yields two new POMOFS with augmented hexagonal tiling (2 and 3), related to a known three-dimensional (3D) cubic array K₁₈Li₆[Mn^II₈(H₂O)₄₈P₈W₄₈O₁₈₄]路108H₂O (1), K₁₂[Mn^II₁₄(H₂O)₃₀P₈W₄₈O₁₈₄]路111H₂O (2), and K₈Li₄[Mn^II₁₄(H₂O)₂₆P₈W₄₈O₁₈₄]路105H₂O (3). These frameworks have been crystallized from aqueous Li-buffered solutions of {P₈W₄₈} and Mn^II(ClO₄)₂路6H₂O via careful control of the synthetic strategy akin to a crystal engineering approach using cation and temperature control to isolate different material architectures shown by compounds 1鈭?b>3.