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

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.
Editor's Commentary
Audiences: Upper-Division Undergraduate
Pedagogies: Computer-Based Learning, Misconceptions / Discrepant Events
Domains: Physical Chemistry
Topics: Mathematics / Symbolic Mathematics, Noncovalent Interactions
File NameDescriptionSoftware TypeSoftware Version
IntermolecularForcesJuly22.pdf Read-Only Document
IntermolecularForcesJuly22.xmcd JCE Mathcad 13 Computational Document Mathcad 13
JCE JCE Subscribers only: name and password or institutional IP number access required.
Kuntzleman, T. S. J. Chem. Educ. 2009, 86, 1469
Comments to: tkuntzle@arbor.edu
©Copyright 2009 Division of Chemical Education, Inc., American Chemical Society.