Homework Answers
based on the positions of the substituents on the cyclic ring the possible axial and equatorial positions are as follows
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6. Would the substituents in these molecules be axial, equatorial, or a mixture between these two?...
7. Draw the two chair conformations for menthol, clearly labeling axial and equatorial substituents. Are the...
7. Draw the two chair conformations for menthol, clearly labeling axial and equatorial substituents. Are the two chairs identical in energy? Explain (2+2+1+1 points) 'OH menthol
Explain the equatorial and axial orientation of the substituents in the more stable forms of the...
Explain the equatorial and axial orientation of the substituents in the more stable forms of the cis and trans isomers of 1-isobutyl-2-methylcyclohexane. Include drawings.
Draw the two chair conformations of each compound and label the substituents as axial and equatorial....
Draw the two chair conformations of each compound and label the substituents as axial and equatorial. In each case, determine which conformation is more stable. a. trans-1-ethyl-2-isopropylcyclohexane b. trans-1-ethyl-3-methylcyclohexane C. Cis-1-ethyl-4-methylcyclohexane d. cis-1-ethyl-3-methylcyclohexane
Determine the conformational preferences (axial or equatorial) for the two indicated groups in the lowest energy...
Determine the conformational preferences (axial or equatorial) for the two indicated groups in the lowest energy ring flip of the molecule below. A - equatorial, B - equatorial A-equatorial, B-axial A - axial. B- equatorial A-axial, B-axial Which of the following molecules are chiral? A only B and D only D only A B and D What is the relationship between molecules A and B? They are enantiomers They are diastereomers They are the same They are constitutional isomers
of 9 Select the statement about equatorial and axial positions in cyclohexane that is correct Each...
of 9 Select the statement about equatorial and axial positions in cyclohexane that is correct Each face of the chair conformation of cyclohexane ring has three axial and three equatorial hydrogens in an alternating pattern. OTwo substituents on the same face of the ring that are not adjacent to each other will be trans. Two substituents on the same face of the ring, one of which is axial and one that is equatorial with be trans to each other. OEach...
Draw SIX (6) cyclohexane molecules in the CHAIR conformation. Draw in all axial and equatorial hydrogens.
Draw SIX (6) cyclohexane molecules in the CHAIR conformation. Draw in all axial and equatorial hydrogens.
need the answer to the question: calculate the difference in energy between the axial and equatorial...
need the answer to the question:
calculate the difference in energy between the axial and equatorial
conformations.
VII. Calculations of the Conformations of Substituted Cyclohexanes In this exercise, you will examine the conformational equilibrium between axial and equatorial methylcyclohexane. Begin by drawing a methylcyclohexane using ChemDraw. Don't forget about the rings shown at the bottom of the toolbar. Chem3D will automatically put the methyl group in the low energy equatorial conformation. Minimize the energy using the calculations) menu. Select MM2...
a. What is the energy difference between the axial and the equatorial conformation of: methyl 5.75...
a. What is the energy difference between the axial and the equatorial conformation of: methyl 5.75 , isopropyl 22.96 t-butyl_25,98 b. Explain the above differences.
Is it axial, equatorial, or ax/eq? The cyclohexane derivative shown exists primarily in the more stable...
Is it axial, equatorial, or ax/eq?
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...
5. Draw the two chair conformations for trans-1-ethyl-3-methylcyclohexane. Label substituents as to whether they are in...
5. Draw the two chair conformations for trans-1-ethyl-3-methylcyclohexane. Label substituents as to whether they are in an axial or equatorial position. Circle the most stable conformation.
7. Draw the two chair conformations for menthol, clearly labeling axial and equatorial substituents. Are the two chairs identical in energy? Explain (2+2+1+1 points) 'OH menthol
Draw the two chair conformations of each compound and label the substituents as axial and equatorial. In each case, determine which conformation is more stable. a. trans-1-ethyl-2-isopropylcyclohexane b. trans-1-ethyl-3-methylcyclohexane C. Cis-1-ethyl-4-methylcyclohexane d. cis-1-ethyl-3-methylcyclohexane
Determine the conformational preferences (axial or equatorial) for the two indicated groups in the lowest energy ring flip of the molecule below. A - equatorial, B - equatorial A-equatorial, B-axial A - axial. B- equatorial A-axial, B-axial Which of the following molecules are chiral? A only B and D only D only A B and D What is the relationship between molecules A and B? They are enantiomers They are diastereomers They are the same They are constitutional isomers
of 9 Select the statement about equatorial and axial positions in cyclohexane that is correct Each face of the chair conformation of cyclohexane ring has three axial and three equatorial hydrogens in an alternating pattern. OTwo substituents on the same face of the ring that are not adjacent to each other will be trans. Two substituents on the same face of the ring, one of which is axial and one that is equatorial with be trans to each other. OEach...
need the answer to the question:
calculate the difference in energy between the axial and equatorial
conformations.
VII. Calculations of the Conformations of Substituted Cyclohexanes In this exercise, you will examine the conformational equilibrium between axial and equatorial methylcyclohexane. Begin by drawing a methylcyclohexane using ChemDraw. Don't forget about the rings shown at the bottom of the toolbar. Chem3D will automatically put the methyl group in the low energy equatorial conformation. Minimize the energy using the calculations) menu. Select MM2...
a. What is the energy difference between the axial and the equatorial conformation of: methyl 5.75 , isopropyl 22.96 t-butyl_25,98 b. Explain the above differences.
Is it axial, equatorial, or ax/eq?
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...
5. Draw the two chair conformations for trans-1-ethyl-3-methylcyclohexane. Label substituents as to whether they are in an axial or equatorial position. Circle the most stable conformation.
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