Abstract
The intramolecular mobility of the decaammonium pillar[5]arene salt with encapsulated thioctic acid in an aqueous solution have been characterized by NMR spectroscopy. Demonstrated that aromatic protons of pillar[5]arene can be utilized to characterize hydroquinone units rotation through the macrocyclic annulus. Using a pulse sequence of CPMG (Carr-Purcell-Meiboom-Gill) the chemical exchange rate constant of the hydroquinone units rotation through the macrocyclic annulus have been measured.
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ACKNOWLEDGMENTS
This work was performed by the financial support from the government assignment for Federal Research Center (FRC) Kazan Scientific Center of Russian Academy of Sciences (RAS). The authors gratefully acknowledge the Assigned Spectral-Analytical Center of FRC Kazan Scientific Center of RAS for possibility to fulfill the NMR experiments.
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Sharipova, L., Stoikov, I., Zuev, Y. et al. Application of Carr-purcell-meiboom-gill Pulse Sequence to Determine Intramolecular Mobility of pillar[5]arene in Complex with Thioctic Acid. rev. and adv. in chem. 12, 131–135 (2022). https://doi.org/10.1134/S2634827622020052
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DOI: https://doi.org/10.1134/S2634827622020052