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Complexation of Nicotinic Acid With First Generation Poly(Amidoamine) Dendrimers: A Microscopic View From Density Functional Theory Publisher



Badalkhanikhamseh F1 ; Bahrami A2 ; Ebrahimhabibi A3, 4 ; Hadipour NL1
Authors
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Authors Affiliations
  1. 1. Department of Physical Chemistry, Tarbiat Modares University, Tehran, Iran
  2. 2. Department of Chemistry, Urmia University, Urmia, Iran
  3. 3. Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

Source: Chemical Physics Letters Published:2017


Abstract

This study explains some electronic and structural parameters of niacin (NA) encapsulation into PAMAM-G1 dendrimer using DFT calculations. Optimized structural geometries, interaction energies, NMR, NBO, and AIM analyses, in accordance with experiment, revealed that the stability of G1@NA complex can be attributed to the five intermolecular hydrogen bonds formed between the functional groups of G1 and NA. Because of nearing to the experimental results, all the calculations repeated again using a self-consistent reaction field (SCRF) and the polarizable continuum model (PCM) to address the implicit solvent effects and the obtained results were in line with the calculations in gas phase. © 2017