Application of Hammond's Postulate. An Activity for Guided Discovery Learning in Organic Chemistry
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[1] Seattle University
Seattle University
Estados Unidos
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[2] University of Washington
University of Washington
Estados Unidos
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- Localización: Journal of chemical education, ISSN 0021-9584, Vol. 78, Nº 2, 2001, pág. 204
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
This paper describes an activity that promotes the more active involvement of organic chemistry students in their learning. In this activity, students are given product distributions and other relevant experimental data concerning the free radical chlorination and bromination of propane. Students are guided in the use of Hammond's postulate to predict transition-state structures and to provide a rationale for the relationship between selectivity and reactivity in these and other reactions. In carrying out the skill exercises, students must also review and apply some of the concepts learned in their general chemistry courses. Because of the wide variety of applications of the Hammond postulate, we believe that this activity, along with the associated discussions, represents an effective teaching/learning model that is particularly useful at the early stages of an organic chemistry series.
