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Tips for creating a Newman Projection Energy Diagram
Use the “worst” (totally eclipsed version) as 0º and 360º.
120º and 240º will be the other “eclipsed” conformations => energy crests.
60º, 180º, and 300º will be the staggered conformations => energy valleys
60º and 300º will be the other two staggered conformations (gauche) => energy valleys.
To compared the relative energies of the eclipsed crests, evaluate the sizes of the eclipsing
substituents (when two non-hydrogens eclipse) and
To compare the relative energies of the staggered valleys, evaluate the number/severity of gauche
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This document was uploaded on 03/03/2014 for the course CHEM 341 at Minnesota State University Moorhead .
- Spring '09
- Organic chemistry