Homework Answers
Answer :
4. D option is correct.
explanation: since the di substituted cyclohexane is trans , therefore either they be both axial or they be both equitorial. However, We have to lowest energy confirmations. Thus, since both axial substituent have much more energy due to gauch butane repulsion. They will be less stable as well, However, in equitorial equitorial substituted compund the energy will be minimal and the compound will be more stable.
Answer 5.
Right option ( compunds) is correct
Explanation: here also, axial equitorial substituted compund is less stable than equitorial equitorial substituted compund. Therefore, right side compound will be favoured at equilibrium.
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Question 3 1 pts Which of the following is the correct chair representation of the disubstituted...
Under standard conditions at T = 298 K, the free energy difference, AG, between the two...
Under standard conditions at T = 298 K, the free energy difference, AG, between the two chair conformations of a substituted cyclohexane molecule is 5.46 kJ/mol. At equilibrium, what percentage of the sample will be in the most stable conformation? Please enter your answer to the nearest whole number. Do NOT include the % sign. For example, if your answer is 21.35%, please input 21
Disubstituted Cyclohexanes Chem 2511/2611 - Chapter 4 Draw both chair conformations for each cyclohexane molecule. 2....
Disubstituted Cyclohexanes Chem 2511/2611 - Chapter 4 Draw both chair conformations for each cyclohexane molecule. 2. On each chair conformation, label the methyl groups as axial/equatorial and upkdown. 3. Label the lowest energy contormation if there is one. Cis or Trans Cyclohexane Chair Conformations 2
1. Draw (1S,3S)-3-aminocyclohexanecarbonitrile structure below: 2. Draw the two chair conformations of the above disubstituted cyclohexane...
1. Draw (1S,3S)-3-aminocyclohexanecarbonitrile structure below: 2. Draw the two chair conformations of the above disubstituted cyclohexane compound, before and after ring-flip. 3. Draw the Newman projections of both chair conformations about the C1−C6 and C3−C4 bonds. 4. Which conformation is the least stable one? Briefly explain your answer with words AND by showing it on the appropriate Newman projection.
with explanation 1) Draw a chair conformation of cyclohexane. Then, draw and level properly all axial...
with explanation
1) Draw a chair conformation of cyclohexane. Then, draw and level properly all axial and equatorial positions on chair form of cyclohexane. 2) Draw chair, half-chair and boat conformations of ethyl cyclohexane and draw an energy diagram to explain their relative stability: 3) Draw two possible chair conformations for each of the mono-substituted cyclohexanes and determine their relative stability with proper explanation. OH 4) Draw two possible chair conformations for each of the di-substituted cyclohexanes and determine their...
9. Draw two different chair conformations of cyclohexanol, showing all hydropen atoms. Identify each position as...
9. Draw two different chair conformations of cyclohexanol, showing all hydropen atoms. Identify each position as axial or equatorial 10. Draw the most stable chair conformation of the following molecules, and estimate the amount of strain in each: (a) trans-1-Chloro-3-methylcyclohexane (b) cis-1-Ethyl-2-methylcyclohexane (c) cis-1-Bromo-4-ethylcyclohexane (d) cis-1-tert-Butylcyclohexane 11. Which isomer is more stable, cis-decalin or trans-decalin? Explain. 12. Glucose exists in two forms having a 36:64 ratio at equilibrium. Draw a skeletal structure of each, describe the difference between them and...
Hello I have a question. Following are the alternative chair conformations for trans-2-bromocyclohexanamine: . Using the...
Hello I have a question.
Following are the alternative chair conformations for
trans-2-bromocyclohexanamine: . Using the data for ΔG for
monosubstituted cyclohexanes at room temperature (25ºC) and the
representative value* for the gauche interaction of two
equatorially positioned substituents in the 1,2-position: a)
Calculate the difference in the Gibbs free energy between the
second and first conformation including the algebraic sign. kJ/mol
b) Given your value in (a), calculate the percent of the chair,
indicated as B, presented in an...
Following are the alternative chair conformations for trans-1,4-dimethylcyclohexane: . Using the data for ΔG for monosubstituted...
Following are the alternative chair conformations for
trans-1,4-dimethylcyclohexane:
.
Using the data for ΔG for monosubstituted cyclohexanes at room
temperature (25ºC) and the representative value* for the gauche
interaction of two equatorially positioned substituents in the
1,2-position:
a) Calculate the difference in the Gibbs free energy between
the second and first conformation including the algebraic sign.
kJ/mol
b) Given your value in (a), calculate the percent of the
chair, indicated as B, presented in an equilibrium mixture of the
conformers...
Question 9 4 pts Which of the following chair conformations represents the most stable chair conformation...
Question 9 4 pts Which of the following chair conformations represents the most stable chair conformation of (15,3S)-1-isopropyl-3-methylcyclohexane? n o CY
1. (a) Draw the two chair conformations for this molecule. (3 pts) (b) Label the more...
1. (a) Draw the two chair conformations for this molecule. (3 pts) (b) Label the more stable conformation (1 pt) 2. Provide (RS)-designations for the two starred (1) stereogenic centers (3 pts) 3. Use a Newman projection to draw the most stable conformation for the C(3)-C(4) bond in this molecule. (3 pts) OH 3-fluoro-3-methylpentan-1-ol
1. Draw the most stable (lowest energy) chair conformation of the following molecule (5 points) 2....
1. Draw the most stable (lowest energy) chair conformation of the following molecule (5 points) 2. Draw the least stable (highest energy) chair conformation of the following molecule (5 points)
Under standard conditions at T = 298 K, the free energy difference, AG, between the two chair conformations of a substituted cyclohexane molecule is 5.46 kJ/mol. At equilibrium, what percentage of the sample will be in the most stable conformation? Please enter your answer to the nearest whole number. Do NOT include the % sign. For example, if your answer is 21.35%, please input 21
Disubstituted Cyclohexanes Chem 2511/2611 - Chapter 4 Draw both chair conformations for each cyclohexane molecule. 2. On each chair conformation, label the methyl groups as axial/equatorial and upkdown. 3. Label the lowest energy contormation if there is one. Cis or Trans Cyclohexane Chair Conformations 2
with explanation
1) Draw a chair conformation of cyclohexane. Then, draw and level properly all axial and equatorial positions on chair form of cyclohexane. 2) Draw chair, half-chair and boat conformations of ethyl cyclohexane and draw an energy diagram to explain their relative stability: 3) Draw two possible chair conformations for each of the mono-substituted cyclohexanes and determine their relative stability with proper explanation. OH 4) Draw two possible chair conformations for each of the di-substituted cyclohexanes and determine their...
9. Draw two different chair conformations of cyclohexanol, showing all hydropen atoms. Identify each position as axial or equatorial 10. Draw the most stable chair conformation of the following molecules, and estimate the amount of strain in each: (a) trans-1-Chloro-3-methylcyclohexane (b) cis-1-Ethyl-2-methylcyclohexane (c) cis-1-Bromo-4-ethylcyclohexane (d) cis-1-tert-Butylcyclohexane 11. Which isomer is more stable, cis-decalin or trans-decalin? Explain. 12. Glucose exists in two forms having a 36:64 ratio at equilibrium. Draw a skeletal structure of each, describe the difference between them and...
Hello I have a question.
Following are the alternative chair conformations for
trans-2-bromocyclohexanamine: . Using the data for ΔG for
monosubstituted cyclohexanes at room temperature (25ºC) and the
representative value* for the gauche interaction of two
equatorially positioned substituents in the 1,2-position: a)
Calculate the difference in the Gibbs free energy between the
second and first conformation including the algebraic sign. kJ/mol
b) Given your value in (a), calculate the percent of the chair,
indicated as B, presented in an...
Following are the alternative chair conformations for
trans-1,4-dimethylcyclohexane:
.
Using the data for ΔG for monosubstituted cyclohexanes at room
temperature (25ºC) and the representative value* for the gauche
interaction of two equatorially positioned substituents in the
1,2-position:
a) Calculate the difference in the Gibbs free energy between
the second and first conformation including the algebraic sign.
kJ/mol
b) Given your value in (a), calculate the percent of the
chair, indicated as B, presented in an equilibrium mixture of the
conformers...
Question 9 4 pts Which of the following chair conformations represents the most stable chair conformation of (15,3S)-1-isopropyl-3-methylcyclohexane? n o CY
1. (a) Draw the two chair conformations for this molecule. (3 pts) (b) Label the more stable conformation (1 pt) 2. Provide (RS)-designations for the two starred (1) stereogenic centers (3 pts) 3. Use a Newman projection to draw the most stable conformation for the C(3)-C(4) bond in this molecule. (3 pts) OH 3-fluoro-3-methylpentan-1-ol
1. Draw the most stable (lowest energy) chair conformation of the following molecule (5 points) 2. Draw the least stable (highest energy) chair conformation of the following molecule (5 points)
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