The anti conformation of 1, 2-dichloroethane, Cl-CH_2-CH_2- Cl, is 4.81 kJ mol^-1 (1.15 kcal mol^-1) more...
2. a. Draw the potential energy diagram for the rotation of the C-C bond in 1,2-dichloroethane through 360° starting with the most stable conformer. Anti is 1.2 kcal/mol more stable than gauche. The gauche conformer is flanked by two energy barriers, 5.2 and 9.3 kcal/mol. b. Draw the conformer that is present in greatest concentration. c. Estimate the difference in stability between the most and least stable.
Complete a potential energy diagram for rotation about the C-Cbond of 1,2-dichloroethane through 360°. starting with the least stable conformer. The anti conformer is 1.2 kcal/mol more stable than a gauche conformer. A gauche conformer has two energy barriers, 5.2 kcal/mol and 9.3 kcal/mol Drag the appropriate labels to their respective targets. Note: not all labels will be used. Reset Help 1209 12 03 00 180 380 90 80 240° Potential Energy AN Dhedral Angle Part B Select the conformer...
Semi-empirical calculations indicate that for cis-1,4-di-tert-butylcyclohexane, a twist boat conformation is approximately 1 kcal/mol (4.2 kJ/mol) more stable than the chair conformation. Propose an explanation.
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...
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...
I already know how to do 1 and 2. if you could show me how to do number 3 on the graph above, and how to calculate the expected energy of the conformer please 1 60 120 180 240 300 360 Torsion angle (degrees) AE (kcal/mol) In the box below each molecule, draw Newman projections for the structures A, B, and C shown from the perspective indicated. For each Newman projection that you've drawn, indicate if there are any eclipsed...
6. Provide the IUPAC names for the compounds below Name: 7. Draw the following: cis-1-isobutyl-2-propyleyclopentane 8. Label the indicated atoms in the structure below as 1º, 2º, 3º, or 4º. PB A A B co 9. Draw Newman projections for the day-diethylane about the C4CS bond, Circle the most stable conforme if you need additional space, please feel free to the backside of this paper 10. Draw the chair conformation and ring-flip for the given compound. Calculate the sterie strain...