The Hydrogen bonding effects in structural analysis of phenilon C-2: the quantum-chemical interpretation

Using ab initio methods of quantum chemistry the structure and spectral properties for molecular complexes, which were formed by monomer of phenilon С-2 chain, including some intra- and intermolecular hydrogen bonding effects as well as electrostatic interactions with evaluation of their contributio...

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Main Authors: Andrey V. Tokar, Olga P. Chigvintseva
Format: Article
Language:English
Published: Oles Honchar Dnipropetrovsk National University 2017-11-01
Series:Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Hìmìâ
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Online Access:http://chemistry.dnu.dp.ua/article/view/081702
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author Andrey V. Tokar
Olga P. Chigvintseva
author_facet Andrey V. Tokar
Olga P. Chigvintseva
author_sort Andrey V. Tokar
collection DOAJ
description Using ab initio methods of quantum chemistry the structure and spectral properties for molecular complexes, which were formed by monomer of phenilon С-2 chain, including some intra- and intermolecular hydrogen bonding effects as well as electrostatic interactions with evaluation of their contributions in total stabilization energy, have been investigated at natural bond orbitals theory. It is shown, that the overlapping of n1,2(O)→ σ*(NН) type with energies 15.4 and 9.5 kJ/mol, which correspond to the strong hydrogen bonding between amide groups, is a main direction for co-operating of some area for structural fragments of macromolecules. The proposed theoretical models are validated in reflection of spectral and energetic parameters for investigating system.
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spelling doaj.art-e0c6804a4442488d8a71819820f816af2022-12-22T02:57:32ZengOles Honchar Dnipropetrovsk National UniversityVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Hìmìâ2306-871X2313-49842017-11-0125191410.15421/081702081702The Hydrogen bonding effects in structural analysis of phenilon C-2: the quantum-chemical interpretationAndrey V. Tokar0Olga P. Chigvintseva1Dnipropetrovsk State University of Agriculture and Economics, S. Efremov Str., 25, Dnipro 49600Dnipropetrovsk State University of Agriculture and Economics, S. Efremov Str., 25, Dnipro 49600Using ab initio methods of quantum chemistry the structure and spectral properties for molecular complexes, which were formed by monomer of phenilon С-2 chain, including some intra- and intermolecular hydrogen bonding effects as well as electrostatic interactions with evaluation of their contributions in total stabilization energy, have been investigated at natural bond orbitals theory. It is shown, that the overlapping of n1,2(O)→ σ*(NН) type with energies 15.4 and 9.5 kJ/mol, which correspond to the strong hydrogen bonding between amide groups, is a main direction for co-operating of some area for structural fragments of macromolecules. The proposed theoretical models are validated in reflection of spectral and energetic parameters for investigating system.http://chemistry.dnu.dp.ua/article/view/081702ab initio calculation, atomic charge, stabilization energy E(2), basis sets superposition error, scale factor, vibrational spectrum, hydrogen bond
spellingShingle Andrey V. Tokar
Olga P. Chigvintseva
The Hydrogen bonding effects in structural analysis of phenilon C-2: the quantum-chemical interpretation
Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Hìmìâ
ab initio calculation, atomic charge, stabilization energy E(2), basis sets superposition error, scale factor, vibrational spectrum, hydrogen bond
title The Hydrogen bonding effects in structural analysis of phenilon C-2: the quantum-chemical interpretation
title_full The Hydrogen bonding effects in structural analysis of phenilon C-2: the quantum-chemical interpretation
title_fullStr The Hydrogen bonding effects in structural analysis of phenilon C-2: the quantum-chemical interpretation
title_full_unstemmed The Hydrogen bonding effects in structural analysis of phenilon C-2: the quantum-chemical interpretation
title_short The Hydrogen bonding effects in structural analysis of phenilon C-2: the quantum-chemical interpretation
title_sort hydrogen bonding effects in structural analysis of phenilon c 2 the quantum chemical interpretation
topic ab initio calculation, atomic charge, stabilization energy E(2), basis sets superposition error, scale factor, vibrational spectrum, hydrogen bond
url http://chemistry.dnu.dp.ua/article/view/081702
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