@article{Sun2017gener-35739,
  year={2017},
  doi={10.1039/C6SC02333A},
  title={A general strategy for colloidal stable ultrasmall amorphous mineral clusters in organic solvents},
  number={2},
  volume={8},
  issn={2041-6520},
  journal={Chemical Science},
  pages={1400--1405},
  author={Sun, Shengtong and Gebauer, Denis and Cölfen, Helmut}
}

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    <dc:creator>Sun, Shengtong</dc:creator>
    <dcterms:title>A general strategy for colloidal stable ultrasmall amorphous mineral clusters in organic solvents</dcterms:title>
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    <dcterms:abstract xml:lang="eng">While nature exerts precise control over the size and chemical composition of minerals, this is still a challenging task for artificial syntheses. Despite its significance, until now, there are still no reports on colloidal mineral nanoparticles in the subnanometer range. Here we developed a general gas diffusion strategy using 10,12-pentacosadiynoic acid as a ligand and ethanol as a solvent to fabricate stable amorphous mineral clusters with a core size of less than 2 nm. First discovered for CaCO&lt;sub&gt;3&lt;/sub&gt;, the method was successfully extended to produce monolayer protected clusters of MgCO&lt;sub&gt;3&lt;/sub&gt;, SrCO&lt;sub&gt;3&lt;/sub&gt;, Eu&lt;sub&gt;2&lt;/sub&gt;(CO&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;3&lt;/sub&gt;, Tb&lt;sub&gt;2&lt;/sub&gt;(CO&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;3&lt;/sub&gt;, Ce&lt;sub&gt;2&lt;/sub&gt;(CO&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;3&lt;/sub&gt;, Ca&lt;sub&gt;x&lt;/sub&gt;(PO&lt;sub&gt;4&lt;/sub&gt;)&lt;sub&gt;y&lt;/sub&gt;, CaC&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt; and their hybrid minerals, Ca&lt;sub&gt;x&lt;/sub&gt;Mg&lt;sub&gt;y&lt;/sub&gt;(CO&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;z&lt;/sub&gt; and Ca&lt;sub&gt;x&lt;/sub&gt;(CO&lt;sub&gt;3&lt;/sub&gt;)&lt;sub&gt;y&lt;/sub&gt;(PO&lt;sub&gt;4&lt;/sub&gt;)&lt;sub&gt;z&lt;/sub&gt;. All the mineral clusters can be well dispersed in organic solvents like toluene, and are stable for a long period without further crystallization. Our work paves a way for the artificial synthesis of colloidal mineral clusters, which may have various uses in both fundamental research and industry.</dcterms:abstract>
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    <dc:creator>Gebauer, Denis</dc:creator>
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    <dc:creator>Cölfen, Helmut</dc:creator>
    <dc:rights>Attribution-NonCommercial 3.0 Unported</dc:rights>
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