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Visualizing the Positive−Negative Interface of Molecular Electrostatic Potentials as an Educational Tool for Assigning Chemical Polarity
Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology. (Visual learning and communication)ORCID iD: 0000-0001-8888-6843
Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology. (Visual learning and communication)ORCID iD: 0000-0003-1032-2145
Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology. (Scientific visualization)ORCID iD: 0000-0003-2429-0842
2010 (English)In: Journal of Chemical Education, ISSN 0021-9584, E-ISSN 1938-1328, Vol. 87, no 12, 1342-1343 p.Article in journal (Refereed) Published
Abstract [en]

To help in interpreting the polarity of a molecule, charge separation can be visualized by mapping the electrostatic potential at the van der Waals surface using a color gradient or by indicating positive and negative regions of the electrostatic potential using different colored isosurfaces. Although these visualizations capture the molecular charge distribution efficiently, using them to deduce overall polarity requires students to engage in the potentially demanding process of interpreting the relative positions of electron-rich and electron-poor areas. We present a visual tool that could help students assign polarity by exploiting the unique topography of the interface between negative and positive regions of electrostatic potential surrounding a molecule. Specifically, the tool renders the electrostatic potential isosurface(s) of a molecule obtained when the isovalue is set at 0. Examples of polar and nonpolar molecules are discussed.

Place, publisher, year, edition, pages
2010. Vol. 87, no 12, 1342-1343 p.
Keyword [en]
visualization, chemistry education, electrostatic potential, polarity
National Category
Didactics
Identifiers
URN: urn:nbn:se:liu:diva-62758DOI: 10.1021/ed100417cISI: 000284033000016OAI: oai:DiVA.org:liu-62758DiVA: diva2:374210
Projects
VisMolLS
Funder
Swedish Research Council, 2008-5077
Available from: 2010-12-03 Created: 2010-12-03 Last updated: 2017-12-12

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Schönborn, Konrad J.Höst, Gunnar E.Lundin Palmerius, Karljohan

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  • apa
  • harvard1
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  • de-DE
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