Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Convert the following to line-angle without using the saw horse projection. Please explain your process as you go through it. Use wedge-dash.
#### Explanation of the Newman Projection:
The Newman projection represents a molecule viewed along the axis of a specific bond, typically carbon-carbon. This type of projection is useful for visualizing the stereochemistry of molecules.
#### Steps to Convert to Line-Angle Notation:
1. **Identify the Bond Axis**:
- The central bond (viewing axis) in the Newman projection is the bond between two carbon atoms.
2. **Identify Groups Attached to Carbons**:
- For the carbon in the front (closest to the observer, shown in the center of the circle):
- One hydrogen atom (H).
- One methyl group (CH₃).
- Another methyl group (CH₃).
- For the carbon in the back (furthest from the observer, shown at the arms of the Y inside the circle):
- Two hydrogen atoms (H).
- One methyl group (CH₃).
3. **Translate the Diagram to Line-Angle Form**:
- The carbon atoms are represented as vertices.
- Bonds are represented as lines.
- Use solid wedges (coming out of the plane towards the observer) and dashed lines (going behind the plane away from the observer) to denote the 3D arrangement.
Following this interpretation, we get the line-angle structure of the molecule.
#### Visualization:
Imagine rotating the molecule so the central bond is horizontal, and place the groups in their relative positions. This should help when adding wedge and dash notations for 3D orientation.
Using this strategy, practitioners can convert complex Newman projections into standard line-angle representations, facilitating easier communication of complex molecular geometries.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa66738f4-d667-44f2-8055-3f1d5861f12b%2F8b7a0b08-58eb-4ec3-943d-cea093462dd3%2Fdzv0izr_processed.png&w=3840&q=75)
Transcribed Image Text:### Converting a Newman Projection to Line-Angle Notation: An Educational Guide
#### Objective:
To convert a given Newman projection of a molecule to its corresponding line-angle structure, utilizing the wedge-dash notation where necessary.
#### Given Newman Projection:
#### Explanation of the Newman Projection:
The Newman projection represents a molecule viewed along the axis of a specific bond, typically carbon-carbon. This type of projection is useful for visualizing the stereochemistry of molecules.
#### Steps to Convert to Line-Angle Notation:
1. **Identify the Bond Axis**:
- The central bond (viewing axis) in the Newman projection is the bond between two carbon atoms.
2. **Identify Groups Attached to Carbons**:
- For the carbon in the front (closest to the observer, shown in the center of the circle):
- One hydrogen atom (H).
- One methyl group (CH₃).
- Another methyl group (CH₃).
- For the carbon in the back (furthest from the observer, shown at the arms of the Y inside the circle):
- Two hydrogen atoms (H).
- One methyl group (CH₃).
3. **Translate the Diagram to Line-Angle Form**:
- The carbon atoms are represented as vertices.
- Bonds are represented as lines.
- Use solid wedges (coming out of the plane towards the observer) and dashed lines (going behind the plane away from the observer) to denote the 3D arrangement.
Following this interpretation, we get the line-angle structure of the molecule.
#### Visualization:
Imagine rotating the molecule so the central bond is horizontal, and place the groups in their relative positions. This should help when adding wedge and dash notations for 3D orientation.
Using this strategy, practitioners can convert complex Newman projections into standard line-angle representations, facilitating easier communication of complex molecular geometries.
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