Homework Answers
Add Answer to:
Identify and count the interactions that destabilize the following conformation, and compute its strain energy using...
Specify the types of strain that destabilize the conformer shown below. Hint: All bonds not explicitly...
Specify the types of strain that destabilize the conformer shown below. Hint: All bonds not explicitly shown are in the staggered conformation. 1. Torsional strain 2. Angle (ring) strain 3. Steric (van der Waals) strain CH3 H H H. H CH3 Calculate strain energy for the conformer pictured below, using strain energy increments from the table. Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol 4.0 1.0 H: H eclipsing H: CH3 eclipsing CH3 : CH3 eclipsing 5.8 1.4 11.0...
Calculate the strain energy of the molecules above using the given strain energy increments from the...
Calculate the strain energy
of the molecules above using the given strain energy increments
from the given table.
Calculate strain energy for the conformer pictured below, using strain energy increments from the table. Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H:Heclipsing 4.0 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 cycloheptane 26.2 cyclooctane 40.5 9.7 6.3 (Calculate your answer to the...
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...
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...
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...
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...
(Be sure to specify units and to enter zero for interactions not present.) CH3 B+→ CH3...
(Be sure to specify units and to enter zero for interactions not present.) CH3 B+→ CH3 eclipsing 6.0 CH3艹CH3 gauche 3.8 kl/mol
Using the table below, calculate the difference in energy between a) the lowest energy conformations of...
Using the table below, calculate the difference in energy between a) the lowest energy conformations of cis- and trans-1,2-dimethylcyclohexane. b) the highest and lowest energy conformations of methyl cyclohexane, trans-1,2-dimethylcyclohexane and cis-1,3-dimethylcyclohexane Type of Strain Interaction Associated Energy Eclipsing of a pair of H's 4kj/mol Eclipsing of a H and a CH3 group 6kj/mol Eclipsing of a pair of CH3 groups 11kj/mol Gauche (60) Interactin between CH3 Groups 3.8 kj/mol 1,3 CH3 to H Interaction on Cyclohexane Chair 3.8kj/mol 1,3...
11. Calculate the percentage of each conformer at 23 °C (AEE-RTINK, where R= 8.314J/K mol), ACH₃...
11. Calculate the percentage of each conformer at 23 °C (AEE-RTINK, where R= 8.314J/K mol), ACH₃ н, Сн HC НАС HC CH3 Conformer A Conformer B Interaction Energy Cost (kJ/mol H-H eclipse 4.0 H-CH3 eclipse CH3-CH: eclipse 11.0 CH3-CH3 gauche 3.8 6.0
x Consider 2,2,3-trimethylbuttane. Using a Newman projection formula, draw the most stable conformation, sighting along the...
x Consider 2,2,3-trimethylbuttane. Using a Newman projection formula, draw the most stable conformation, sighting along the C2-C3 bond. Compute the total strain energy for this conformation. Refer to strain energy values given below. Strain energies with respect to atoms/groups bonded to C-C (one atom/group bonded to each C) H <---> H eclipsed: 4 kJ/mol CH3 <---> H eclipsed: 6 kJ/mol CH3 <----> CH3 eclipsed: 11 kJ/mol CH3 <----> CH3 gauche staggered: 3.8 kJ/mol Selected Answer: D. 7.6 kJ/mol Answers: A....
Specify the types of strain that destabilize the conformer shown below. Hint: All bonds not explicitly shown are in the staggered conformation. 1. Torsional strain 2. Angle (ring) strain 3. Steric (van der Waals) strain CH3 H H H. H CH3 Calculate strain energy for the conformer pictured below, using strain energy increments from the table. Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol 4.0 1.0 H: H eclipsing H: CH3 eclipsing CH3 : CH3 eclipsing 5.8 1.4 11.0...
Calculate the strain energy
of the molecules above using the given strain energy increments
from the given table.
Calculate strain energy for the conformer pictured below, using strain energy increments from the table. Strain Energy for Alkanes Interaction / Compound kJ/mol kcal/mol H:Heclipsing 4.0 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 cycloheptane 26.2 cyclooctane 40.5 9.7 6.3 (Calculate your answer to the...
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...
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...
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...
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...
(Be sure to specify units and to enter zero for interactions not present.) CH3 B+→ CH3 eclipsing 6.0 CH3艹CH3 gauche 3.8 kl/mol
11. Calculate the percentage of each conformer at 23 °C (AEE-RTINK, where R= 8.314J/K mol), ACH₃ н, Сн HC НАС HC CH3 Conformer A Conformer B Interaction Energy Cost (kJ/mol H-H eclipse 4.0 H-CH3 eclipse CH3-CH: eclipse 11.0 CH3-CH3 gauche 3.8 6.0
x Consider 2,2,3-trimethylbuttane. Using a Newman projection formula, draw the most stable conformation, sighting along the C2-C3 bond. Compute the total strain energy for this conformation. Refer to strain energy values given below. Strain energies with respect to atoms/groups bonded to C-C (one atom/group bonded to each C) H <---> H eclipsed: 4 kJ/mol CH3 <---> H eclipsed: 6 kJ/mol CH3 <----> CH3 eclipsed: 11 kJ/mol CH3 <----> CH3 gauche staggered: 3.8 kJ/mol Selected Answer: D. 7.6 kJ/mol Answers: A....
Most questions answered within 3 hours.
-
If a block of Si is doped with 10^17 Boron atom/cm^3 and 5X10^16
Arsenic atoms/cm^3,
(a)...
asked 15 minutes ago -
Why would natural selection not minimize costs (in the form of
symptoms) of evolved defenses? (choose...
asked 33 minutes ago -
What is true about a critical task?
Latest finish time - latest start time = 0...
asked 36 minutes ago -
A company uses a
process costing system. Its Assembly Department's beginning
inventory consisted of 56,800 units,...
asked 36 minutes ago -
a
sealed glass cylinder contains 325 g of N2 gas at 1.02 atm at 20 c....
asked 40 minutes ago -
The main difference between an equity and a nonequity alliance
is that
A
equity alliances are...
asked 38 minutes ago -
Need help with this, in JAVA, using netbeans. A
complete response will receive a positive comment...
asked 47 minutes ago -
An imprest petty cash fund of $600 was established for minor
disbursements. At the end of...
asked 52 minutes ago -
Sharpe Cutter is a small company that produces specialty knives
for paper cutting machinery. The annual...
asked 56 minutes ago -
Calculating the Ka of a weak acid from
pH:
The pH of a 0.68M solution of...
asked 57 minutes ago -
1.What process is pushing back against gravity in the very
center (the core) of sun-like stars?...
asked 1 hour ago -
This question is from the textbook "Python for ArcGIS" by Laura
Tateosian:
Write a script "triangles.py"...
asked 1 hour ago