equatorial

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Give the position, axial or equatorial, of each of the three groups shown when the ring is in the most stable chair conformation

**Cyclohexane Derivatives and Chair Conformations**

Cyclohexane derivatives exist primarily in the most stable of the available chair conformations. To determine the position—axial or equatorial—of each of the three groups shown when the ring is in its most stable chair conformation, refer to the provided cyclohexane diagram. If a group divides its time equally between axial and equatorial positions, indicate this with "ax/eq."

### Cyclohexane Diagram Description
The diagram depicts a cyclohexane ring with three substituents labeled as follows:
- **Group a**: a bromine atom (Br) attached to the ring.
- **Group b**: a vinyl group (CH=CH₂) attached to the ring.
- **Group c**: a hydrogen atom (H) attached to the ring.

### Position Determination
The positions for each group can be defined using a dropdown menu with options for "axial," "equatorial," or "ax/eq."

- **Group a** position
- **Group b** position
- **Group c** position

### Reference Tool
Consider using the table titled "Axial Strain Energies for Monosubstituted Cyclohexanes" in the "Strain Energy Increments" section to assist in choosing the positions.

This section helps evaluate and understand the stability and spatial arrangement of the substituents in cyclohexane chair conformations.
Transcribed Image Text:**Cyclohexane Derivatives and Chair Conformations** Cyclohexane derivatives exist primarily in the most stable of the available chair conformations. To determine the position—axial or equatorial—of each of the three groups shown when the ring is in its most stable chair conformation, refer to the provided cyclohexane diagram. If a group divides its time equally between axial and equatorial positions, indicate this with "ax/eq." ### Cyclohexane Diagram Description The diagram depicts a cyclohexane ring with three substituents labeled as follows: - **Group a**: a bromine atom (Br) attached to the ring. - **Group b**: a vinyl group (CH=CH₂) attached to the ring. - **Group c**: a hydrogen atom (H) attached to the ring. ### Position Determination The positions for each group can be defined using a dropdown menu with options for "axial," "equatorial," or "ax/eq." - **Group a** position - **Group b** position - **Group c** position ### Reference Tool Consider using the table titled "Axial Strain Energies for Monosubstituted Cyclohexanes" in the "Strain Energy Increments" section to assist in choosing the positions. This section helps evaluate and understand the stability and spatial arrangement of the substituents in cyclohexane chair conformations.
**Cyclohexane Chair Conformations and Axial/Equatorial Positions**

Cyclohexane derivatives exist primarily in the most stable of the available chair conformations. When analyzing such compounds, it's crucial to determine the position—either axial or equatorial—of each substituent group for the most stable chair conformation. If a substituent group spends equal time in both axial and equatorial positions, it should be indicated as "ax/eq."

**Molecular Structure and Groups:**

The accompanying diagram represents a cyclohexane molecule with three labeled groups:

- Group **a**: Methoxy group (OCH₃) attached to the cyclohexane ring.
- Group **b**: Methyl group (CH₃) attached with a wedge bond, indicating its direction.
- Group **c**: Hydrogen atom (H) attached to the cyclohexane ring.

**Selection Interface:**

Beneath the molecular structure, there is a selection interface for specifying the position of each group:

- **Group a** is:
  - Axial
  - Equatorial
  - Axial/Equatorial
- **Group b** is:
  - Axial
  - Equatorial
  - Axial/Equatorial
- **Group c** is:
  - Axial
  - Equatorial
  - Axial/Equatorial

**Reference Information:**

For additional guidance on determining the positions of substituents, the "Axial Strain Energies for Monosubstituted Cyclohexanes" can be found in the "Strain Energy Increments" section of the Reference tool. This information is essential for answering the question about the most stable conformation.

Use this guide to analyze cyclohexane derivatives effectively, focusing on stability and substituent positioning.
Transcribed Image Text:**Cyclohexane Chair Conformations and Axial/Equatorial Positions** Cyclohexane derivatives exist primarily in the most stable of the available chair conformations. When analyzing such compounds, it's crucial to determine the position—either axial or equatorial—of each substituent group for the most stable chair conformation. If a substituent group spends equal time in both axial and equatorial positions, it should be indicated as "ax/eq." **Molecular Structure and Groups:** The accompanying diagram represents a cyclohexane molecule with three labeled groups: - Group **a**: Methoxy group (OCH₃) attached to the cyclohexane ring. - Group **b**: Methyl group (CH₃) attached with a wedge bond, indicating its direction. - Group **c**: Hydrogen atom (H) attached to the cyclohexane ring. **Selection Interface:** Beneath the molecular structure, there is a selection interface for specifying the position of each group: - **Group a** is: - Axial - Equatorial - Axial/Equatorial - **Group b** is: - Axial - Equatorial - Axial/Equatorial - **Group c** is: - Axial - Equatorial - Axial/Equatorial **Reference Information:** For additional guidance on determining the positions of substituents, the "Axial Strain Energies for Monosubstituted Cyclohexanes" can be found in the "Strain Energy Increments" section of the Reference tool. This information is essential for answering the question about the most stable conformation. Use this guide to analyze cyclohexane derivatives effectively, focusing on stability and substituent positioning.
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