Intermolecular Interactions: Dipole-Dipole, Dipole-Induced Dipole, and London Dispersion Forces©
Thomas S Kuntzelman Department of Chemistry Spring Arbor University Spring Arbor, MI 49283 United States mail to: tkuntzle@arbor.edu
Masayuki Shibata Department of Health Informatics University of Medicine and Dentistry of New Jersey Newark, New Jersey 07107-3001 United States
Abstract
This Mathcad document introduces students to simple potential functions which allows them to compare and contrast various intermolecular interactions. In particular, dipole-dipole interactions, dipole-induced dipole interactions and London dispersion interactions are explored. Many students are surprised to learn that most molecules simultaneously exhibit all three types of forces in intermolecular interactions. In addition, the Lennard-Jones potential is introduced to allow students to examine the relationship between various forces introduced in this document and the attractive portion of Lennard-Jones potential. They will also learn the role of short range repulsive interactions in determination of equilibrium distance of interacting system.
Commentary
Editor's Commentary
Keywords
Audiences: Upper-Division Undergraduate Pedagogies: Computer-Based Learning, Misconceptions / Discrepant Events Domains: Physical Chemistry Topics: Mathematics / Symbolic Mathematics, Noncovalent Interactions
Documents
File Name Description Software Type Software Version IntermolecularForcesJuly22.pdf Read-Only Document IntermolecularForcesJuly22.xmcd Mathcad 13 Computational Document Mathcad 13 JCE Subscribers only: name and password or institutional IP number access required.
Citations
Kuntzleman, T. S. J. Chem. Educ. 2009, 86, 1469
Comments to: tkuntzle@arbor.edu
©Copyright 2009 Division of Chemical Education, Inc., American Chemical Society.