Stability and Reactivity of Tocopherols: Theoretical Study

In the search for the tocopherols structure-reactivity relationship, our calculations showed that the GAP, which is the difference between the energy values of the frontier orbitals, decreases during the passage gas/aqueous medium for the isoforms α, β and γ. But it increases for isoform δ. This mea...

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Main Authors: Nasséra Benbrahim, Kawther Zeddour-Brahim, Zahia Zizi, Zohra Bengharez
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Chemistry Proceedings
Subjects:
Online Access:https://www.mdpi.com/2673-4583/14/1/20
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author Nasséra Benbrahim
Kawther Zeddour-Brahim
Zahia Zizi
Zohra Bengharez
author_facet Nasséra Benbrahim
Kawther Zeddour-Brahim
Zahia Zizi
Zohra Bengharez
author_sort Nasséra Benbrahim
collection DOAJ
description In the search for the tocopherols structure-reactivity relationship, our calculations showed that the GAP, which is the difference between the energy values of the frontier orbitals, decreases during the passage gas/aqueous medium for the isoforms α, β and γ. But it increases for isoform δ. This means that the latter is less reactive and less soft than the others in aqueous medium. On the other hand, the chemical descriptors calculations revealed that the transfer of electrons takes place in the direction α < β < γ < δ in the gas state and aqueous medium.
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publisher MDPI AG
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series Chemistry Proceedings
spelling doaj-art-b7974a30c41247368aefacd7ac3c68af2025-08-20T02:56:06ZengMDPI AGChemistry Proceedings2673-45832023-11-011412010.3390/ecsoc-27-16043Stability and Reactivity of Tocopherols: Theoretical StudyNasséra Benbrahim0Kawther Zeddour-Brahim1Zahia Zizi2Zohra Bengharez3Laboratory of Advanced Materials and Physicochemistry for Environment and Health, Djillali Liabes University, Sidi Bel Abbes 22000, AlgeriaFaculty of Exact Sciences, Djillali Liabes University, Sidi Bel Abbes 22000, AlgeriaLaboratory of Advanced Materials and Physicochemistry for Environment and Health, Djillali Liabes University, Sidi Bel Abbes 22000, AlgeriaLaboratory of Advanced Materials and Physicochemistry for Environment and Health, Djillali Liabes University, Sidi Bel Abbes 22000, AlgeriaIn the search for the tocopherols structure-reactivity relationship, our calculations showed that the GAP, which is the difference between the energy values of the frontier orbitals, decreases during the passage gas/aqueous medium for the isoforms α, β and γ. But it increases for isoform δ. This means that the latter is less reactive and less soft than the others in aqueous medium. On the other hand, the chemical descriptors calculations revealed that the transfer of electrons takes place in the direction α < β < γ < δ in the gas state and aqueous medium.https://www.mdpi.com/2673-4583/14/1/20calculationsDFTtocopherolsreactivitystability
spellingShingle Nasséra Benbrahim
Kawther Zeddour-Brahim
Zahia Zizi
Zohra Bengharez
Stability and Reactivity of Tocopherols: Theoretical Study
Chemistry Proceedings
calculations
DFT
tocopherols
reactivity
stability
title Stability and Reactivity of Tocopherols: Theoretical Study
title_full Stability and Reactivity of Tocopherols: Theoretical Study
title_fullStr Stability and Reactivity of Tocopherols: Theoretical Study
title_full_unstemmed Stability and Reactivity of Tocopherols: Theoretical Study
title_short Stability and Reactivity of Tocopherols: Theoretical Study
title_sort stability and reactivity of tocopherols theoretical study
topic calculations
DFT
tocopherols
reactivity
stability
url https://www.mdpi.com/2673-4583/14/1/20
work_keys_str_mv AT nasserabenbrahim stabilityandreactivityoftocopherolstheoreticalstudy
AT kawtherzeddourbrahim stabilityandreactivityoftocopherolstheoreticalstudy
AT zahiazizi stabilityandreactivityoftocopherolstheoreticalstudy
AT zohrabengharez stabilityandreactivityoftocopherolstheoreticalstudy