Computational investigation on the host-guest inclusion process of norfloxacin into β-cyclodextrin.
A theoretical (1)H NMR spectroscopy and thermodynamic analysis of the host-guest inclusion process involving the norfloxacin (NFX) into β-cyclodextrin (β-CD) was carried out. DFT structure and stabilization energies were obtained in both gas and aqueous phases. We could establish that the complex formation is enthalpy driven, and the hydrogen bonds established between NFX and β-CD play a major role in the complex stabilization. Besides, a theoretical (1)H NMR analysis has shown to be a supplementary proceeding to predict appropriately the inclusion mode of norfloxacin molecule into the β-CD. In this work, a theoretical study of the NFX@β-CD complex is reported for the first time, seeking a deep understanding of topology and thermodynamics of the inclusion complex formation. Graphical Abstract Topology, thermodynamic and (1)H NMR analysis of NFX@β-CD host-guest complexes.
['Maia|Pollyanna P|PP|', 'de Sousa|Sara Maria R|SM|', 'De Almeida|Wagner B|WB|', 'Guimarães|Luciana|L|', 'Nascimento|Clebio S|CS|']
D006860:Hydrogen Bonding D009682:Magnetic Resonance Spectroscopy D008956:Models, Chemical D009643:Norfloxacin D013816:Thermodynamics D047392:beta-Cyclodextrins
Norfloxacin NMR spectroscopy Cyclodextrins DFT calculations Host–guest inclusion complexes