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Which of the following conformers experience torsional strain? CH3 CH3 A CH3 N он CH3 В HCH3 с HCH3 D Br н CH3 13 H CH3 E

Which of the following conformers experience torsional strain? CH3 CH3 A CH3 N он CH3 В HCH3 с HCH3 D Br н CH3 13 H CH3 E

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Conformers and Torsional Strain** **Question:** Which of the following conformers experience torsional strain? **Explanation:** This image presents five different molecular conformers labeled A through E. Each diagram represents a staggered conformation of a molecule, viewed along the carbon-carbon bond axis. - **Conformer A:** Displays a simple alkane with a methyl group (CH₃) and hydrogens (H) arranged around the central bond. - **Conformer B:** Introduces an OH group on the right side. - **Conformer C:** Features two methyl groups (CH₃) with hydrogen atoms on either side. - **Conformer D:** Has a chlorine atom (Cl) on one side. - **Conformer E:** Shows a bromine atom (Br) on the left side. In the context of torsional strain, attention is focused on the interactions between substituents located in adjacent positions on the molecule. Torsional strain is typically influenced by steric hindrance from large groups eclipsing each other, which can cause destabilization. To determine which conformers experience torsional strain, analyze the spatial arrangement and size of the substituent groups, considering how interactions may influence molecular energy. Eclipsed or skewed conformations often exhibit increased torsional strain due to the proximity of bulky groups like OH, Cl, or Br.
Transcribed Image Text:**Conformers and Torsional Strain** **Question:** Which of the following conformers experience torsional strain? **Explanation:** This image presents five different molecular conformers labeled A through E. Each diagram represents a staggered conformation of a molecule, viewed along the carbon-carbon bond axis. - **Conformer A:** Displays a simple alkane with a methyl group (CH₃) and hydrogens (H) arranged around the central bond. - **Conformer B:** Introduces an OH group on the right side. - **Conformer C:** Features two methyl groups (CH₃) with hydrogen atoms on either side. - **Conformer D:** Has a chlorine atom (Cl) on one side. - **Conformer E:** Shows a bromine atom (Br) on the left side. In the context of torsional strain, attention is focused on the interactions between substituents located in adjacent positions on the molecule. Torsional strain is typically influenced by steric hindrance from large groups eclipsing each other, which can cause destabilization. To determine which conformers experience torsional strain, analyze the spatial arrangement and size of the substituent groups, considering how interactions may influence molecular energy. Eclipsed or skewed conformations often exhibit increased torsional strain due to the proximity of bulky groups like OH, Cl, or Br.
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