Consider 2-methylbutane (isopentane). Sighting along the C2-C3 bond, Draw a Newman projection formula for the most stable conformation. Based on your drawing, determine the total strain energy for this conformation. Given the following strain energies with respect to atoms/groups bonded to C-C (one atom/group bonded to each C) H <---> H eclipsed: 4 kJ/mol CH3 <---> H eclipsed: 6 kJ/mol CH3 <----> CH3 eclipsed: 11 kJ/mol CH 3 <----> CH3 gauche staggered: 3.8 kJ/mol Select one: O A. 11 kJ/mol O B. 7.6 kJ/mol O C. 3.8 kJ/mol O D. 14.8 kJ/mol
Consider 2-methylbutane (isopentane). Sighting along the C2-C3 bond, Draw a Newman projection formula for the most stable conformation. Based on your drawing, determine the total strain energy for this conformation. Given the following strain energies with respect to atoms/groups bonded to C-C (one atom/group bonded to each C) H <---> H eclipsed: 4 kJ/mol CH3 <---> H eclipsed: 6 kJ/mol CH3 <----> CH3 eclipsed: 11 kJ/mol CH 3 <----> CH3 gauche staggered: 3.8 kJ/mol Select one: O A. 11 kJ/mol O B. 7.6 kJ/mol O C. 3.8 kJ/mol O D. 14.8 kJ/mol
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Chapter1: Chemical Foundations
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Transcribed Image Text:**Title: Understanding Conformational Analysis of 2-Methylbutane**
**Text:**
Consider 2-methylbutane (isopentane). When observing along the C₂–C₃ bond, draw a Newman projection formula for the most stable conformation. Based on your drawing, determine the total strain energy for this conformation.
**Strain Energies (with respect to atoms/groups bonded to C–C):**
- H ⟷ H eclipsed: 4 kJ/mol
- CH₃ ⟷ H eclipsed: 6 kJ/mol
- CH₃ ⟷ CH₃ eclipsed: 11 kJ/mol
- CH₃ ⟷ CH₃ gauche staggered: 3.8 kJ/mol
**Question:**
Determine the total strain energy for the most stable conformation by selecting the correct option:
- A. 11 kJ/mol
- B. 7.6 kJ/mol
- C. 3.8 kJ/mol
- D. 14.8 kJ/mol
Expert Solution
Step 1
Most stable conformation of 2-methylbutane can be drawn by considering the strain of functional groups.
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