Applying Mechanochemistry for Bottom‐Up Synthesis and Host–Guest Surface Modification of Semiconducting Nanocrystals: A Case of Water‐Soluble β‐Cyclodextrin‐Coated Zinc Oxide |
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| Authors: | Piotr Krupiński Arkadiusz Kornowicz Dr Kamil Sokołowski Anna M Cieślak Prof Janusz Lewiński |
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| Affiliation: | 1. Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland;2. Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland;3. http://lewin.ch.pw.edu.pl |
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| Abstract: | Mechanochemistry has recently emerged as an environmentally friendly solventless synthesis method enabling a variety of transformations including those impracticable in solution. However, its application in the synthesis of well‐defined nanomaterials remains very limited. Here, we report a new bottom‐up mechanochemical strategy to rapid mild‐conditions synthesis of organic ligand‐coated ZnO nanocrystals (NCs) and their further host–guest modification with β‐cyclodextrin (β‐CD) leading to water‐soluble amide‐β‐CD‐coated ZnO NCs. The transformations can be achieved by either one‐pot sequential or one‐step three‐component process. The developed bottom‐up methodology is based on employing oxo‐zinc benzamidate, Zn4(μ4‐O)(NHOCPh)6], as a predesigned molecular precursor undergoing mild solid‐state transformation to ZnO NCs in the presence of water in a rapid, clean and sustainable process. |
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| Keywords: | cyclodextrins green chemistry host– guest systems mechanochemistry nanoparticles zinc oxide |
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