- Indicate Whether The Pair Of Structures Shown Represent Stereoisomers Constitutional Isomers Different Conformations O 1 (25.99 KiB) Viewed 81 times
- Indicate Whether The Pair Of Structures Shown Represent Stereoisomers Constitutional Isomers Different Conformations O 2 (54.87 KiB) Viewed 81 times
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- Indicate Whether The Pair Of Structures Shown Represent Stereoisomers Constitutional Isomers Different Conformations O 5 (42.34 KiB) Viewed 81 times
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 cquilibrium at 25°C (To determine the percent of the more stable chair at equilibrium, first calculate Key, and then use this value to find the percentage) CH сн. HEC Answers: a. The energy difference is kJ/mol. b. In the more stable chair. The methyl group is in the position The isopropyl group is in the position c. At 25°C the equilibrium percent of the more stable chair conformation is approximately Submit Answer Retry Entire Group 9 more group attempts remaining 60 65 70 75 80 85 90 95 >95 Previous Show Hint Email Instructor Save and Cengage Learning Certgage Technical Support
(Review Topical Reference Use the References to access important values if needed for this question 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.) CH сн. Answers: a. The energy difference is kJ/mol. b. In the more stable chair: The isopropyl group is in the position. • The phenyl group is in the position c. At 25°C the equilibrium percent of the more stable chair conformation is approximately – 0 9 more group attempts remaining Retry Entire Group Submit Answer Previous Save and Exit Email Instructor Show Hint
Review Topical The cyclohexane derivative shown exists primarily in the more stable of the two available chair conformations. Give the position, axial or equatorial, of each of the three groups shown in the more stable chair conformation. If a group divides its time equally between axial and equatorial positions, indicute this with ax/eq. The table of "Axial Strain Energies for Monosubstituted Cyclohexanes" found in the "Strain Energy Increments" section of the Reference tool is useful for answering this question. нь CH3CH2 C(CH3)3 С Group a is Group bis Group c is 8 more group attempts remaining Submit Answer Retry Entire Group Nost Save and Est Emainstructor
bbbaaimate- mal Mylab Math Pears. Course Home Review Topel The cyclohexane derivative shown exists primarily in the more stable of the two available chair conformations. Give the position, axial or equatorial, of each of the three groups shown in the more stable chair conformation. If a group divides its time equally between axial and equatorial positions, indicate this with ax/eq The table of "Axial Strain Energies for Monosubstituted Cyclohexanes" found in the Strain Energy Increments" section of the Reference tool is useful for answering this question. 0 HCO сосн Group a is Group bis Groupe is @ @ Submit Answer Retry Entire Group more group attempts remaining Previous > Emainstructor Save and Cengage learning Ceng Technical Support