Computational Insights into HVA/β-CD Inclusion Complexes: Thermodynamics, Structural Analysis, and NMR Correlations

Document Type : Review Article

Authors

1 Laboratory of Organic Chemistry and Interdisciplinary, University of Mohamed Cherif Messaadia, Souk Ahras, 41000, Algeria

2 Laboratory of Organic Materials and Heterochemistry, University of LarbiTebessi, Tébessa, 12000, Algeria

3 Laboratory of Organic Chemistry and Interdisciplinary, University of Mohamed Cherif Messaadia, Souk Ahras, 41000, Algeria. Laboratory of Organic Materials and Heterochemistry, University of LarbiTebessi, Tébessa, 12000, Algeria

4 Laboratory of Molecular and Thio-Organic Chemistry, University of Caen, Caen 14050, France

10.22036/pcr.2024.410899.2392

Abstract

This study employed advanced computational methods, including semi-empirical parametric method 3 (PM3) and density functional theory (DFT), to investigate the host/guest inclusion complexes of β-cyclodextrin (β-CD) with homovanilic acid (HVA). Utilizing B3LYP, M08HX, and PW6B95 approaches, global minima were optimized in both vacuum and aqueous phases. The focus spanned complexation, interaction, and deformation energies, as well as the geometry, electronic structure, and chemical reactivity of HVA during encapsulation. Natural-bonding orbital (NBO) simulations highlighted the significant role of intermolecular hydrogen interactions in the stability of HVA/β-CD complexes. The study, employing the Global-hybrid meta-GGA functional methodology (PW6B95/6-31G(d)), shed light on energetically favored molecules, emphasizing superior results in orientation A. The Gauge-Including Atomic Orbital (GIAO) method has been used to study 1H nuclear magnetic resonance (NMR) complexes. .These insights contribute to advancing host-guest systems and drug delivery applications.

Graphical Abstract

Computational Insights into HVA/β-CD Inclusion Complexes: Thermodynamics, Structural Analysis, and NMR Correlations

Keywords

Main Subjects