Answers: a. Use strain energy increments in the OWL Table Reference (see References button, Strain Energy Increments) to calculate the energy difference between the two chair conformations of the compound below. b. Specify substituent positions (axial or equatorial) in the more stable chair. c. Estimate the percent of the more stable chair at equilibrium at 25°C. (To determine the percent of the more stable chair at equilibrium, first calculate Keq and then use this value to find the percentage.) H3C CH3 a. The energy difference is b. In the more stable chair: OH kJ/mol. position. position. • The isopropyl group is in the o The carboxyl group is in the c. At 25°C the equilibrium percent of the more stable chair conformation is approximately

Answers: a. Use strain energy increments in the OWL Table Reference (see References button, Strain Energy Increments) to calculate the energy difference between the two chair conformations of the compound below. b. Specify substituent positions (axial or equatorial) in the more stable chair. c. Estimate the percent of the more stable chair at equilibrium at 25°C. (To determine the percent of the more stable chair at equilibrium, first calculate Keq and then use this value to find the percentage.) H3C CH3 a. The energy difference is b. In the more stable chair: OH kJ/mol. position. position. • The isopropyl group is in the o The carboxyl group is in the c. At 25°C the equilibrium percent of the more stable chair conformation is approximately

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter7: Cycloalkanes

Section: Chapter Questions

Problem 17E: Build a model of methylcyclohexane, and use the model to complete the following Newmanprojections of...

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Use flat representation of rings, not chair in the drawing. Determine the most and least stable. Consider the most stable chair for each of these isomers, and then draw the most stable and least stable isomer based on a comparison of the best chair for each one.
Use strain energy increments in the OWL Table Reference (see References button, Strain Energy Increments) to calculate the energy difference between the two chair conformations of the compound below. Specify substituent positions (axial or equatorial) in the more stable chair. Estimate the percent of the more stable chair at equilibrium at 25°C. (To determine the percent of the more stable chair at equilibrium, first calculate Keq, and then use this value to find the percentage.)
Are my chair conformations correct? What about the energies of each conformation according to the table?
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