Organic Chemistry · free preview

3.7 Conformations of Other Alkanes

Propane, the next-higher member in the alkane series, also has a torsional barrier that results in hindered rotation around the carbon–carbon bonds. The barrier is slightly higher in propane than in e

1. Propane, the next-higher member in the alkane series, also h

Propane, the next-higher member in the alkane series, also h

2. As bond rotation continues, an energy minimum is reached at

As bond rotation continues, an energy minimum is reached at

3. After 0°, the rotation becomes a mirror image of what we’ve

After 0°, the rotation becomes a mirror image of what we’ve

4. Interaction | Cause | Energy cost - (kJ/mol) | (kcal/mol) -

Interaction | Cause | Energy cost - (kJ/mol) | (kcal/mol) -

5. Part 5

Part 5

6. Worked Example 3.4: Newman Projections

Worked Example 3.4: Newman Projections

7. Problem 3-15 Make a graph of potential energy versus angle o

Problem 3-15 Make a graph of potential energy versus angle o

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