Question: Calculate strain energy for the 3 conformers pictured below, using strain energy increments from the 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:Hedipsing H: CH₂ eclipsing CH3 CH3 eclipsing gauche butane cyclopropane cyclobutane cyclopentane 26.0 cycloheptane 26.2 cyclooctane 40.5 (Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive.) H H₂C CH₂ CH₂ H₂CH₂C 4.0 20 5.8 CH₂ 11.0 H3C 3.8 115 110 (Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive.) 1.0 1.4 CH₂ 2.6 0.9 27.5 26.3 6.2 6.3 9.7 CH3 CH₂ .H

Question: Calculate strain energy for the 3 conformers pictured below, using strain energy increments from the 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:Hedipsing H: CH₂ eclipsing CH3 CH3 eclipsing gauche butane cyclopropane cyclobutane cyclopentane 26.0 cycloheptane 26.2 cyclooctane 40.5 (Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive.) H H₂C CH₂ CH₂ H₂CH₂C 4.0 20 5.8 CH₂ 11.0 H3C 3.8 115 110 (Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive.) 1.0 1.4 CH₂ 2.6 0.9 27.5 26.3 6.2 6.3 9.7 CH3 CH₂ .H

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter6: Alkanes & Alkenes

Section: Chapter Questions

Problem 4E: Consider the molecule 1-bromo-2-methylbutane. C3 and C4 should be drawn as Et as in theexample. This...

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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: H eclipsing 4.0 H: CH3 eclipsing 5.8 CH3 CH3 eclipsing 11.0 gauche butane 3.8 115 110 26.0 26.2 40.5 H₂C ball & stick Strain energy = cyclopropane cyclobutane cyclopentane cycloheptane cyclooctane (Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kj/mol or kcal/mol. The answer is case sensitive.) H3C H CH3 1.0 + labels 1.4 2.6 0.9 27.5 26.3 6.2 6.3 9.7
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Calculate strain energy for the conformer pictured below, using strain energy increments from the 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:H eclipsing 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 6.3 cyclooctane 40.5 9.7 (Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive.) CH3 H3CH,C CH3 H3C CH3 Previous Next
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Calculate strain energy for the conformer pictured below, using strain energy increments from the table. Strain Energy for Alkanes Interaction / Compound kJ/mol keal/mol H:H eclipsing 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 6.3 cyclooctane 40,5 9.7 (Calculate your answer to the nearest 0.1 energy unit, and be sure to specify units, kJ/mol or kcal/mol. The answer is case sensitive CH H. H. H. CH3
What is the total strain energy of 2,2-dimethylpropane in an eclipsed conformation? (Use Newman projection formula, sighting along C₁-C₂ bond; draw an eclipsed conformation). Given the following 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 Select one: OA. 12 kJ OB. 11.4 kj O C. 18 kJ OD. 21 kJ
TOMA is a conformational stereoisomer of trans-1,2-dimethylcyclohexane. It is converted to conformer ATOM through ring-flip. ring-flip CH3 CH3 АТОМ ТОМА a. Draw the structure of the conformer ATOM in sawhorse and Newman projections b. Calculate the strain energies of ATOM and TOMA given the following energy values. Show necessary solutions. ENERGY ENERGY INTERACTION INTERACTION ENERGY (kcal/mol) INTERACTION (kcal/mol) (kcal/mol) 1,3-diaxial gauche CH3- CH3 eclipsed CH3- 1.0 CH3 3.0 0.9 (one CH3-H) eclipsed CH3- 2.0 CI 2.0 1,3-diaxial gauche CI - CI 0.25 (one Cl-H) gauche CH3-Cl 1.4 eclipsed Cl-CI 4.0 c. Which is more stable between the two conformers?