Adsorption of Vitamin C on a Fullerene Surface: DFT Studies

Authors

  • Kun Harismah Department of Chemical Engineering, Faculty of Engineering, Universitas Muhammadiyah Surakarta, Surakarta, Indonesia
  • Mahmoud Mirzaei Bioinformatics Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
  • Maryam Sadeghi Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran
  • Rezvan Baniasadi Department of Pharmaceutical Chemistry, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
Abstract:

Density functional theory (DFT) calculations were performed to investigate adsorptions of vitamin C (Vit) on the surface a fullerene structure (Ful) in gaseous and water–solvated systems. Two models of Vit including OVit and MVit were created based on the original structure of Vit for OVit and methylation of all hydroxyl groups for MVit. All singular and hybrid structures were optimized and the molecular properties were then evaluated for them. Binding energies and dipole moments indicated that the formation of MVit–Ful hybrid could be more favourable than OVit–Ful hybrid. Molecular orbital properties of hybrid systems demonstrated almost similarity to each other and similarity to the singular Ful model; however, they are completely different from both of singular Vit models. It could be mentioned that the Vit counterparts miss their contributions to molecular orbital distributions in the hybrid systems. Quadrupole coupling constants (CQ) have been also evaluated for oxygen atoms of Vit counterparts in both singular and hybrid models, in which they demonstrated the effects of interactions on the atomic scale properties of Vit counterparts. The evaluated results indicated the solvent effects on all molecular and atomic scales properties of Vit and Ful structures in both of singular and hybrid situations.

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Journal title

volume 4  issue 1

pages  1- 7

publication date 2017-03-01

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