Solvent Polarity/Polarizability Parameters: A Study of Catalan’s <i>SPP</i><sup>N</sup>, Using Computationally Derived Molecular Properties, and Comparison with <i>π</i>* and <i>E</i><sub>T</sub>(30)

Catalan’s <i>SPP</i><sup>N</sup>, a measure of solvent polarity/polarizability has been analysed in terms of molecular properties derived from computational chemistry. The results show that <i>SPP</i><sup>N</sup> correlates positively with the molecula...

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Main Author: W. Earle Waghorne
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Liquids
Subjects:
Online Access:https://www.mdpi.com/2673-8015/4/1/8
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author W. Earle Waghorne
author_facet W. Earle Waghorne
author_sort W. Earle Waghorne
collection DOAJ
description Catalan’s <i>SPP</i><sup>N</sup>, a measure of solvent polarity/polarizability has been analysed in terms of molecular properties derived from computational chemistry. The results show that <i>SPP</i><sup>N</sup> correlates positively with the molecular dipole moment and quadrupolar amplitude and negatively with the molecular polarizability. These correlations are shared with Kamet and Taft’s <i>π</i>* and Reichardt and Dimroth’s <i>E</i><sub>T</sub>(30). Thus, one can associate the solvent polarity with non-specific interactions involving the permanent charges on solvent molecules. It is also noted that the opposite correlations, all three parameters increasing with increasing solvent polarity but decreasing with increasing solvent polarizability, creates an ambiguity in their use, for example, in linear free energy relationships.
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spelling doaj.art-de6785cbb91042c5803392ebf206c1542024-03-27T13:51:28ZengMDPI AGLiquids2673-80152024-02-014116317010.3390/liquids4010008Solvent Polarity/Polarizability Parameters: A Study of Catalan’s <i>SPP</i><sup>N</sup>, Using Computationally Derived Molecular Properties, and Comparison with <i>π</i>* and <i>E</i><sub>T</sub>(30)W. Earle Waghorne0UCD School of Chemistry, University College Dublin, D04 V1W8 Dublin, IrelandCatalan’s <i>SPP</i><sup>N</sup>, a measure of solvent polarity/polarizability has been analysed in terms of molecular properties derived from computational chemistry. The results show that <i>SPP</i><sup>N</sup> correlates positively with the molecular dipole moment and quadrupolar amplitude and negatively with the molecular polarizability. These correlations are shared with Kamet and Taft’s <i>π</i>* and Reichardt and Dimroth’s <i>E</i><sub>T</sub>(30). Thus, one can associate the solvent polarity with non-specific interactions involving the permanent charges on solvent molecules. It is also noted that the opposite correlations, all three parameters increasing with increasing solvent polarity but decreasing with increasing solvent polarizability, creates an ambiguity in their use, for example, in linear free energy relationships.https://www.mdpi.com/2673-8015/4/1/8solvent parameterspolaritypolarizability<i>E</i><sub>T</sub>(30)Catalan <i>SPP</i>computational chemistry
spellingShingle W. Earle Waghorne
Solvent Polarity/Polarizability Parameters: A Study of Catalan’s <i>SPP</i><sup>N</sup>, Using Computationally Derived Molecular Properties, and Comparison with <i>π</i>* and <i>E</i><sub>T</sub>(30)
Liquids
solvent parameters
polarity
polarizability
<i>E</i><sub>T</sub>(30)
Catalan <i>SPP</i>
computational chemistry
title Solvent Polarity/Polarizability Parameters: A Study of Catalan’s <i>SPP</i><sup>N</sup>, Using Computationally Derived Molecular Properties, and Comparison with <i>π</i>* and <i>E</i><sub>T</sub>(30)
title_full Solvent Polarity/Polarizability Parameters: A Study of Catalan’s <i>SPP</i><sup>N</sup>, Using Computationally Derived Molecular Properties, and Comparison with <i>π</i>* and <i>E</i><sub>T</sub>(30)
title_fullStr Solvent Polarity/Polarizability Parameters: A Study of Catalan’s <i>SPP</i><sup>N</sup>, Using Computationally Derived Molecular Properties, and Comparison with <i>π</i>* and <i>E</i><sub>T</sub>(30)
title_full_unstemmed Solvent Polarity/Polarizability Parameters: A Study of Catalan’s <i>SPP</i><sup>N</sup>, Using Computationally Derived Molecular Properties, and Comparison with <i>π</i>* and <i>E</i><sub>T</sub>(30)
title_short Solvent Polarity/Polarizability Parameters: A Study of Catalan’s <i>SPP</i><sup>N</sup>, Using Computationally Derived Molecular Properties, and Comparison with <i>π</i>* and <i>E</i><sub>T</sub>(30)
title_sort solvent polarity polarizability parameters a study of catalan s i spp i sup n sup using computationally derived molecular properties and comparison with i π i and i e i sub t sub 30
topic solvent parameters
polarity
polarizability
<i>E</i><sub>T</sub>(30)
Catalan <i>SPP</i>
computational chemistry
url https://www.mdpi.com/2673-8015/4/1/8
work_keys_str_mv AT wearlewaghorne solventpolaritypolarizabilityparametersastudyofcatalansisppisupnsupusingcomputationallyderivedmolecularpropertiesandcomparisonwithipiandieisubtsub30