Arrange the following conformational changes of cyclohexane from least to most stable: A. Chair conformation, B. Twist-boat conformation, C. Boat conformation, D. Half-chair conformation.

Question

Seekh · Accepted Answer

The least stable conformation is the half‑chair because it forces many bonds to bend and creates a lot of strain. Next comes the boat, which has eclipsing interactions and a “flagpole” strain that makes it less stable. The twist‑boat is better because it reduces eclipsing and flagpole strain, so it sits above the boat in stability. Finally the chair is the most stable, because all bonds are staggered and the ring is fully relaxed. For example, when a cyclohexane ring flips from chair to half‑chair, the energy rises sharply, showing how the half‑chair is the least favorable.

Arrange the following conformational changes of cyclohexane from least to most stable: A. Chair conformation, B. Twist-boat conformation, C. Boat conformation, D. Half-chair conformation.

Learning Path

Choose the Best Answer

Understanding the Answer

Answer

Detailed Explanation

Key Concepts

Practice Similar Questions

In a substituted cyclohexane with a bulky tert-butyl group and a smaller ethyl group, which configuration minimizes steric hindrance and maximizes stability in the chair conformation?

In a chair conformation of cyclohexane, which statement best explains the implications of substituent positioning on molecular stability?

When considering chair conformations of cyclohexane, which arrangement of substituents generally leads to the most stable conformation?

In the chair conformation of cyclohexane, substituents in the ____ position are generally more stable due to reduced steric interactions compared to those in the axial position.

Ready to Master More Topics?