JCE 2008 (85) 1222 [Sep] Helping Students Assess the Relative Importance of Different Intermolecular Interactions


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Home > JCE Print > Journal of Chemical Education > Issues > 2008 > September >

In the Classroom

Helping Students Assess the Relative Importance of Different Intermolecular Interactions

Paul G. Jasien
Department of Chemistry and Biochemistry, California State University San Marcos, San Marcos, CA 92096

September 2008
Vol. 85 No. 9
p. 1222

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Abstract

A semi-quantitative model has been developed to estimate the relative effects of dispersion, dipole–dipole interactions, and H-bonding on the normal boiling points (T_b) for a subset of simple organic systems. The model is based upon a statistical analysis using multiple linear regression on a series of straight-chain organic compounds. Although it is not predictive in terms of the absolute boiling points of these compounds, this model provides a framework that may be useful to instructors and students in understanding the relative boiling points of compounds. Application of this model may be useful in addressing student misconceptions related to the additivity of intermolecular interactions, which is often not emphasized sufficiently in texts.

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Data used in this work are available in Microsoft Excel format.


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	JCE2008p1222W.zip	JCE2008p1222W.xls (Microsoft Excel)

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Citation	Jasien, Paul G. J. Chem. Educ. 2008, 85, 1222.
Keywords	Chemometrics; First-Year Undergraduate / General; Misconceptions / Discrepant Events; Molecular Properties / Structure; Noncovalent Interactions; Physical Chemistry; Physical Properties; Upper-Division Undergraduate
History	Created: Last Updated:	8/4/2008 8/4/2008

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