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 equilibrium mixture of the
conformers at 25ºC. % *The actual value will depend on the
substituents. The values of the gas constant and the temperature
for 25ºC are 8.314 JK-1mol-1 and 298 K respectively.
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Hello I have a question.
Following are the alternative chair conformations for
trans-2-bromocyclohexanamine: . Using the...
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...
Following are the alternative chair conformations for trans-2-methylcyclohexanamine: NH2 NH2 CHз CH3 A Using the data...
Following are the alternative chair conformations for trans-2-methylcyclohexanamine: NH2 NH2 CHз CH3 A Using the data for AG for monosubstituted cyclohexanes at room temperature (25°C) and the representative value* for the gauche interaction of two equatorially positioned substituents in the 1,2-position: axial equatorial AG° (kJ/mol) Group AG° (kJ/mol) Group C=N NH2 CH3 1,2-gauche -5.9 -0.8 -2.4 -7.3 Br ОН -3.9 3.8 kJ/mol a) Calculate the difference in the Gibbs free energy between the second and first conformation including the algebraic...
On a separate sheet of paper, draw the two alternative chair conformations for the product formed by the addition of bro...
On a separate sheet of paper, draw the two alternative chair
conformations for the product formed by the addition of bromine to
4-tert-butylcyclohexene. The Gibbs free-energy differences between
equatorial and axial substituents on a cyclohexane ring are 21
kJ/mol for tert-butyl, and 2.3 kJ/mol for bromine. Calculate the
ratio of the two observed products at 46.0 °C using the following
equation: The gas constant, R, is 8.314 J/K·mol. (Enter your answer
to two significant figures.) Ratio: ____ to 1 Major...
On a separate sheet of paper, draw the two alternative chair conformations for the product formed...
On a separate sheet of paper, draw the two alternative chair conformations for the product formed by the addition of bromine to 4-tert-butylcyclohexene. The Gibbs free-energy differences between equatorial and axial substituents on a cyclohexane ring are 21 kJ/mol for tert-butyl, and 2.3 kJ/mol for bromine. Calculate the ratio of the two observed products at 34.0 °C using the following equation: AG° = – RT In Keg The gas constant, R, is 8.314 J/K mol. (Enter your answer to two...
Question 3 1 pts Which of the following is the correct chair representation of the disubstituted...
Question 3 1 pts Which of the following is the correct chair representation of the disubstituted cyclohexane in its lowest energy conformation? Question 4 1 pts Which of the following conformers is favoured at equilibrium? cm No preference Left Not enough information • Right 1 pts Question 5 Under standard conditions at T = 298 K, the free energy difference, AGº, between the two chair conformations of a substituted cyclohexane molecule is 2.7 kJ/mol. At equilibrium, what percentage of the...
Strain Energy Increments Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H: Heclipsing 4.0 1.0 H: CH3...
Strain Energy Increments Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H: Heclipsing 4.0 1.0 H: CH3 eclipsing 5.8 1.4 CH3 : CHз eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 27.5 115 cyclobutane 110 26.3 cyclopentane 26.0 6.2 cycloheptane 26.2 6.3 cyclooctane 40.5 9.7 Ln Axial Strain Energies for Monosubstituted Cyclohexanesa,b This table gives the sum of the values for the 1,3 diaxial interactions of the substituent with two hydrogen atoms. Substituent(solvent) К/mol kcal/mol -CНз 7,3 1,7 -CH-CHз...
a. Use strain energy increments in the OWL Table Reference (see References button, Strain Energy Increments)...
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.) OH H3C...
a. Use strain energy increments in the OWL Table Reference (see References button, Strain Energy Increments) to calcula...
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.) A CH3...
Strain Energy Increments Strain Energy for Alkanes Interaction/Compound kJ/mol kcal/ 4.0 H: Heclipsing 1.0 H: CH3...
Strain Energy Increments Strain Energy for Alkanes Interaction/Compound kJ/mol kcal/ 4.0 H: Heclipsing 1.0 H: CH3 eclipsing 5.8 1.4 CH3 : CH3 eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 115 27.5 cyclobutane 110 26.3 cyclopentane 26.0 6.2 6.3 cycloheptane 26.2 cyclooctane 40.5 9.7 Axial Strain Energies for Monosubstituted Cyclohexanesab This table gives the sum of the values for the 1,3 diaxial interactions of the substituent with two hydrogen atoms. kJ/mol kcal/mol Substituent(solvent) -CH3 1.7 7.3 CH2CH3 7.5 1.8 -CH(CH3)2...
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...
Following are the alternative chair conformations for trans-2-methylcyclohexanamine: NH2 NH2 CHз CH3 A Using the data for AG for monosubstituted cyclohexanes at room temperature (25°C) and the representative value* for the gauche interaction of two equatorially positioned substituents in the 1,2-position: axial equatorial AG° (kJ/mol) Group AG° (kJ/mol) Group C=N NH2 CH3 1,2-gauche -5.9 -0.8 -2.4 -7.3 Br ОН -3.9 3.8 kJ/mol a) Calculate the difference in the Gibbs free energy between the second and first conformation including the algebraic...
On a separate sheet of paper, draw the two alternative chair
conformations for the product formed by the addition of bromine to
4-tert-butylcyclohexene. The Gibbs free-energy differences between
equatorial and axial substituents on a cyclohexane ring are 21
kJ/mol for tert-butyl, and 2.3 kJ/mol for bromine. Calculate the
ratio of the two observed products at 46.0 °C using the following
equation: The gas constant, R, is 8.314 J/K·mol. (Enter your answer
to two significant figures.) Ratio: ____ to 1 Major...
On a separate sheet of paper, draw the two alternative chair conformations for the product formed by the addition of bromine to 4-tert-butylcyclohexene. The Gibbs free-energy differences between equatorial and axial substituents on a cyclohexane ring are 21 kJ/mol for tert-butyl, and 2.3 kJ/mol for bromine. Calculate the ratio of the two observed products at 34.0 °C using the following equation: AG° = – RT In Keg The gas constant, R, is 8.314 J/K mol. (Enter your answer to two...
Question 3 1 pts Which of the following is the correct chair representation of the disubstituted cyclohexane in its lowest energy conformation? Question 4 1 pts Which of the following conformers is favoured at equilibrium? cm No preference Left Not enough information • Right 1 pts Question 5 Under standard conditions at T = 298 K, the free energy difference, AGº, between the two chair conformations of a substituted cyclohexane molecule is 2.7 kJ/mol. At equilibrium, what percentage of the...
Strain Energy Increments Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H: Heclipsing 4.0 1.0 H: CH3 eclipsing 5.8 1.4 CH3 : CHз eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 27.5 115 cyclobutane 110 26.3 cyclopentane 26.0 6.2 cycloheptane 26.2 6.3 cyclooctane 40.5 9.7 Ln Axial Strain Energies for Monosubstituted Cyclohexanesa,b This table gives the sum of the values for the 1,3 diaxial interactions of the substituent with two hydrogen atoms. Substituent(solvent) К/mol kcal/mol -CНз 7,3 1,7 -CH-CHз...
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.) OH H3C...
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.) A CH3...
Strain Energy Increments Strain Energy for Alkanes Interaction/Compound kJ/mol kcal/ 4.0 H: Heclipsing 1.0 H: CH3 eclipsing 5.8 1.4 CH3 : CH3 eclipsing 11.0 2.6 gauche butane 3.8 0.9 cyclopropane 115 27.5 cyclobutane 110 26.3 cyclopentane 26.0 6.2 6.3 cycloheptane 26.2 cyclooctane 40.5 9.7 Axial Strain Energies for Monosubstituted Cyclohexanesab This table gives the sum of the values for the 1,3 diaxial interactions of the substituent with two hydrogen atoms. kJ/mol kcal/mol Substituent(solvent) -CH3 1.7 7.3 CH2CH3 7.5 1.8 -CH(CH3)2...
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