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Galindres DM, Espitia-Galindo N, Valente AJM, Sofio SPC, Rodrigo MM, Cabral AMTDPV, Esteso MA, Zapata-Rivera J, Vargas EF, Ribeiro ACF. Interactions of Sodium Salicylate with β-Cyclodextrin and an Anionic Resorcin[4]arene: Mutual Diffusion Coefficients and Computational Study. Int J Mol Sci 2023; 24:ijms24043921. [PMID: 36835327 PMCID: PMC9961392 DOI: 10.3390/ijms24043921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/10/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
The interaction between sodium salicylate (NaSal) and the two macrocycles 5,11,17,23-tetrakissulfonatomethylene-2,8,14,20-tetra(ethyl)resorcinarene (Na4EtRA) and β-cyclodextrin (β-CD) has been studied by the determination of ternary mutual diffusion coefficients, and spectroscopic and computational techniques. The results obtained by the Job method suggest that the complex formation is given in a 1:1 ratio for all systems. The mutual diffusion coefficients and the computational experiments have shown that the β-CD-NaSal system presents an inclusion process, whereas the Na4EtRA-NaSal system forms an outer-side complex. This fact is also in line with the results obtained from the computational experiments, where the calculated solvation free energy has been found to be more negative for the Na4EtRA-NaSal complex because of the partial entry of the drug inside the Na4EtRA cavity.
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Affiliation(s)
- Diana M. Galindres
- Grupo de Fisicoquímica y Análisis Matemático (Physchemath), Facultad de Ciencias y Humanidades, Universidad de América, Avda Circunvalar No. 20-53, Bogotá 110321, Colombia
| | - Nicolás Espitia-Galindo
- Grupo de Termodinámica de Soluciones, Departamento de Química, Facultad de Ciencias, Universidad de los Andes, Cra 1 No. 18A-12, Bogotá 111711, Colombia
- Molecular Electronic Structure Group, Department of Chemistry, Universidad de los Andes, Carrera 1 No. 18A-10, Bogotá 111711, Colombia
| | - Artur J. M. Valente
- CQC-IMS, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Sara P. C. Sofio
- CQC-IMS, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - M. Melia Rodrigo
- U.D. Química Física, Universidad de Alcalá, 28805 Alcalá de Henares, Spain
| | | | - Miguel A. Esteso
- U.D. Química Física, Universidad de Alcalá, 28805 Alcalá de Henares, Spain
- Faculty of Health Sciences, Universidad Católica de Ávila, Calle Los Canteros s/n, 05005 Ávila, Spain
- Correspondence:
| | - Jhon Zapata-Rivera
- Molecular Electronic Structure Group, Department of Chemistry, Universidad de los Andes, Carrera 1 No. 18A-10, Bogotá 111711, Colombia
| | - Edgar F. Vargas
- Grupo de Termodinámica de Soluciones, Departamento de Química, Facultad de Ciencias, Universidad de los Andes, Cra 1 No. 18A-12, Bogotá 111711, Colombia
| | - Ana C. F. Ribeiro
- CQC-IMS, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
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Current Status of Quantum Chemical Studies of Cyclodextrin Host-Guest Complexes. Molecules 2022; 27:molecules27123874. [PMID: 35744998 PMCID: PMC9229288 DOI: 10.3390/molecules27123874] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/09/2022] [Accepted: 06/13/2022] [Indexed: 12/30/2022] Open
Abstract
This article aims to review the application of various quantum chemical methods (semi-empirical, density functional theory (DFT), second order Møller-Plesset perturbation theory (MP2)) in the studies of cyclodextrin host-guest complexes. The details of applied approaches such as functionals, basis sets, dispersion corrections or solvent treatment methods are analyzed, pointing to the best possible options for such theoretical studies. Apart from reviewing the ways that the computations are usually performed, the reasons for such studies are presented and discussed. The successful applications of theoretical calculations are not limited to the determination of stable conformations but also include the prediction of thermodynamic properties as well as UV-Vis, IR, and NMR spectra. It has been shown that quantum chemical calculations, when applied to the studies of CD complexes, can provide results unobtainable by any other methods, both experimental and computational.
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