Supramolecular properties of amphiphilic adamantylated azo dyes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F21%3A63536558" target="_blank" >RIV/70883521:28110/21:63536558 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0143720821002874" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0143720821002874</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.dyepig.2021.109420" target="_blank" >10.1016/j.dyepig.2021.109420</a>

Result language
angličtina
Original language name
Supramolecular properties of amphiphilic adamantylated azo dyes
Original language description
Despite environmental and health risks, azo dyes are still very popular colourising agents; therefore, methods for removing the dyes and/or related pollutants from wastewater have been developed. We have incorporated a lipophilic adamantane cage into two polar disulphonatonaphthalene-1-azobenzene dyes to prove the concept that modified dyes can be treated via host–guest supramolecular interactions using suitable cyclodextrin (CD) and cucurbit[n]uril (CBn) hosts. We conducted 1H NMR experiments to demonstrate that both dyes form specific inclusion complexes with an adamantane cage buried inside the CB7 or β-CD cavity. Using isothermal titration calorimetry, we determined association constants with β-CD and CB7 in the range of (0.7–1.3) × 106 and (1.4–3.4) × 108, respectively. As the dye@CB7 complexes were sparingly soluble in water, the dye can be efficiently removed from water by precipitation, even in the presence of β-CD.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10401 - Organic chemistry

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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