Asymmetric Hybrid Polyoxometalates: A Platform for Multifunctional Redox-Active Nanomaterials
Asymmetric Hybrid Polyoxometalates: A Platform for Multifunctional Redox-Active Nanomaterials
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DOI：
10.1002/anie.201912046
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发表时间：
2019-10-24
影响因子：
16.6
通讯作者：
Newton, Graham N.
中科院分区：
文献类型：
--
作者：
Hampson, Elizabeth;Cameron, Jamie M.;Newton, Graham N.
获得不对称功能化的多金属氧酸盐是一个巨大的挑战，因为它可能会产生具有多种或模块化功能的新型分子纳米材料。现在，提出了一种简单的一锅合成方法，可以以良好的产率分离不对称官能化的有机-无机杂化 Wells-Dawson 多金属氧酸盐。该簇具有两个具有对比物理性质的有机膦酸酯部分：一个螯合金属结合基团和一个长脂肪链，可促进溶剂依赖性自组装成软纳米结构。通过基于 POM 的氧化还原活性纳米颗粒的受控组装，有效地证明了模块化系统的正交特性。这种简单、高产的合成方法是制备多功能杂化金属氧化物簇、超分子系统和软纳米材料的一种有前途的新方法。
Access to asymmetrically functionalized polyoxometalates is a grand challenge as it could lead to new molecular nanomaterials with multiple or modular functionality. Now, a simple one-pot synthetic approach to the isolation of an asymmetrically functionalized organic-inorganic hybrid Wells-Dawson polyoxometalate in good yield is presented. The cluster bears two organophosphonate moieties with contrasting physical properties: a chelating metal-binding group, and a long aliphatic chain that facilitates solvent-dependent self-assembly into soft nanostructures. The orthogonal properties of the modular system are effectively demonstrated by controlled assembly of POM-based redox-active nanoparticles. This simple, high-yielding synthetic method is a promising new approach to the preparation of multi-functional hybrid metal oxide clusters, supermolecular systems, and soft-nanomaterials.