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Br H CH3 H Br CH3 I H. Br CH 3 H Br CH 3

Br H CH3 H Br CH3 I H. Br CH 3 H Br CH 3

Chemistry
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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these two structures are ______. a. diastereomers b. constitutional isomers c. same compound d. enantiomers
### Newman Projection of Ethane Derivatives The image features two representations of the same chemical molecule using different projection techniques: the Fischer Projection and the Newman Projection. **Left Diagram: Fischer Projection** - The central vertical line represents the carbon chain. - Attached to the central carbon atoms are two bromine (Br) atoms and two hydrogen (H) atoms in the horizontal positions. - The top and bottom of the vertical line have methyl groups (CH₃) attached. **Right Diagram: Newman Projection** - The central circle represents the front carbon atom. - The lines radiating out from the circle indicate the bonds to the front carbon atom, and the attached groups are a hydrogen (H) atom, a bromine (Br) atom, and a methyl (CH₃) group. - The back carbon atom is represented by the three lines meeting at the center of the circle (forming a Y shape). Attached to the back carbon atom are a hydrogen (H) atom, a bromine (Br) atom, and a methyl (CH₃) group. **Understanding Newman Projections:** - Newman projections are a way to visualize the spatial arrangement of atoms or groups around a particular bond. - The front carbon is represented by a circle, and the back carbon is shown by three lines meeting at the center of the circle. - This projection makes it easier to understand the staggered and eclipsed conformations of ethane derivatives. These two diagrams provide different but complementary ways of visualizing the molecular structure, which can be critical for understanding stereochemistry and conformational analysis in organic chemistry.
Transcribed Image Text:### Newman Projection of Ethane Derivatives The image features two representations of the same chemical molecule using different projection techniques: the Fischer Projection and the Newman Projection. **Left Diagram: Fischer Projection** - The central vertical line represents the carbon chain. - Attached to the central carbon atoms are two bromine (Br) atoms and two hydrogen (H) atoms in the horizontal positions. - The top and bottom of the vertical line have methyl groups (CH₃) attached. **Right Diagram: Newman Projection** - The central circle represents the front carbon atom. - The lines radiating out from the circle indicate the bonds to the front carbon atom, and the attached groups are a hydrogen (H) atom, a bromine (Br) atom, and a methyl (CH₃) group. - The back carbon atom is represented by the three lines meeting at the center of the circle (forming a Y shape). Attached to the back carbon atom are a hydrogen (H) atom, a bromine (Br) atom, and a methyl (CH₃) group. **Understanding Newman Projections:** - Newman projections are a way to visualize the spatial arrangement of atoms or groups around a particular bond. - The front carbon is represented by a circle, and the back carbon is shown by three lines meeting at the center of the circle. - This projection makes it easier to understand the staggered and eclipsed conformations of ethane derivatives. These two diagrams provide different but complementary ways of visualizing the molecular structure, which can be critical for understanding stereochemistry and conformational analysis in organic chemistry.
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