Inclusion complexation abilities of cucurbit[6]uril for various aromatic amines in the presence of alkali metal cations
| Autor: | Yusaku Honda, Tadashi Hanaya, Yoshimi Sueishi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
010405 organic chemistry Chemistry Inorganic chemistry Aromatic amine General Chemistry 010402 general chemistry Condensed Matter Physics Alkali metal 01 natural sciences 0104 chemical sciences Organic molecules Polymer chemistry Proton NMR Molecule Amine gas treating Inclusion (mineral) Food Science |
| Zdroj: | Journal of Inclusion Phenomena and Macrocyclic Chemistry. 88:253-257 |
| ISSN: | 1573-1111 1388-3127 |
| DOI: | 10.1007/s10847-017-0727-3 |
| Popis: | The inclusion complexation of aromatic amines with cucurbit[6]uril (CB[6]) capped with alkali metal cations was studied spectrophotometrically. We showed that CB[6] capped with alkali metal cations forms a 1:1 inclusion complex with the aromatic amine guests (neutral organic molecules), independent of the length of guest molecules. The effects of salts on the inclusion constants of CB[6] in the presence of different alkali salts were examined and it was found that the inclusion constants increased in the order of alkali cation Cs+ < Na+ < K+, suggesting the interaction of amine guests with the capped alkali metal cation. Further, the structures of the inclusion complexation of aromatic amines with CB[6] were characterized by 1H NMR measurements. Based on the results, the inclusion abilities of CB[6] capped with alkali metal cations are discussed. |
| Databáze: | OpenAIRE |
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