| Autor: |
Tolkynay Burkhanbayeva, Alexey N. Guslyakov, Farkhad F. Tarikhov, Dmitry I. Pavlov, Rakhmetulla S. Erkasov, Abdigali A. Bakibaev, Andrei S. Potapov, Vyacheslav A. Yanovsky, Victor S. Malkov |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Journal of Saudi Chemical Society, Vol 28, Iss 2, Pp 101819- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1319-6103 |
| DOI: |
10.1016/j.jscs.2024.101819 |
| Popis: |
A novel supramolecular complex C44H71Cl2N26O22 (CB[6]@Pipa·2HCl) of the “host-guest” type has been synthesized. It is based on cucurbit[6]uril (CB[6]) with dihydrochloride 1,4-bis(2-hydroxyethyl)piperazine (Pipa·2HCl) localized within the portals of the macrocycle. Based on 1H NMR and X-ray crystallography, the host–guest ratio in the complex under the specified conditions was determined to be 1:1. Further evidence of complex formation was observed through IR spectroscopy, where a shift in the absorption band of carbonyl vibrational frequencies of cucurbit[6]uril by 36 cm−1 towards the longer wavelength region was detected in CB[6]@Pipa·2HCl compared to the original CB[6]. TGA/DSC analysis results indicated an increase in thermal stability by 55 °C for the obtained CB[6]@Pipa·2HCl complex compared to the initial 1,4-bis(2-hydroxyethyl)piperazine dihydrochloride. The structure of the synthesized CB[6]@Pipa·2HCl complex was confirmed using single-crystal XRD. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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