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首页> 外文期刊>Crystal growth & design >Insights into the self-Assembly mechanism of the modular polyoxometalate 'Keggin-net' family of framework materials and their electronic properties
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Insights into the self-Assembly mechanism of the modular polyoxometalate 'Keggin-net' family of framework materials and their electronic properties

机译：对模块化多金属氧酸盐“ Keggin-net”框架材料及其电子特性的自组装机制的见解

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摘要

The mechanism for the syntheses of inorganic framework materials based solely on polyoxometalate Keggin clusters has been examined and their electronic properties have been investigated. The assembly of the modular network compounds wi th the molecular formula (C _4H _(10)NO) _n[W _(72)M _(12)O _(268)X _7] (with the heteroatom X = Si or Ge and the heterometal M = Co(II) or Mn(III)) is based on the isomerization of the metastable precursor material [γ-XW _(10)O _(36)] ~(8-), followed by the inclusion of the heterometal and subsequent assembly into the extended framework structure. The two frameworks featuring manganese substitution can be dis- and reassembled in a recrystallization process while the cobalt versions do not show comparable behavior. The intrinsic differences of the four compounds with regards to their heteroatom and heterometal substitution are shown in terms of their redox behavior.
机译：研究了仅基于多金属氧酸盐Keggin团簇的无机骨架材料的合成机理，并研究了其电子性能。模块化网络化合物的组装具有分子式（C _4H _（10）NO）_n [W _（72）M _（12）O _（268）X _7]（杂原子X = Si或Ge并且杂金属M = Co（II）或Mn（III））是基于亚稳前体材料[γ-XW_（10）O _（36）]〜（8-）的异构化而来的，杂金属和随后的组装成扩展框架结构。具有锰取代作用的两个骨架可以在重结晶过程中分解和重新组装，而钴版本则没有类似的行为。四种化合物在其杂原子和杂金属取代方面的内在差异以其氧化还原行为表示。

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