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Dft Explorations of Quadrupole Coupling Constants for Planar 5-Fluorouracil Pairs Publisher



Mirzaei M1 ; Gulseren O2 ; Hadipour N3
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Authors Affiliations
  1. 1. Bioinformatics Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department of Physics, Faculty of Science, Bilkent University, Ankara, Turkey
  3. 3. Department of Chemistry, Faculty of Science, Tarbiat Modares University, Tehran, Iran

Source: Computational and Theoretical Chemistry Published:2016


Abstract

Atomic scale properties of quadrupole coupling constants (CQ) have been evaluated for singular and paired 5-fluorouracil (FU) models. Structural possibilities and properties for various types of hydrogen bonded (HB) homo pairs of FU have been investigated based on density functional theory (DFT) calculations. The models have been optimized to obtain the minimum energy level structures and only the planar molecular pairs have been considered. Various types of HB interactions have also managed the molecular shapes for the FU pairs. Different types of energies and also electron transferring properties have been investigated by the evaluated optimized properties. The atomic scale results indicated different strengths of HB interactions for FU pairs according to the changes of CQ properties for atoms in the singular and paired systems depending on the strength of interactions. © 2016 Elsevier B.V.
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