Calculate the free-energy difference between the stable and unstable chairconformation of each the following trimethylhexanes.(i)CH3CH;CH3CH3CH,ASupport your answer with the drawing of conformer(s) and show your calculations.Energy (kJ mol')Energy cost by:H+CH; eclipsedCH3+>CH; gauche1,3-diaxial (He>CH3) strain1,3-diaxial (CH3

For substituted cyclohexane, the most stable chair conformation is the one when most of the…

Calculate the free-energy difference between the stable and unstable chair conformation of each the following trimethylhexanes. CH, CH, CH3 CH3 "CH3 B Support your answer with the drawing of conformer(s) and show your calculations. Energy cost by: H+CH3 eclipsed CH;++CH, gauche 1,3-diaxial (He»CH;) strain 1,3-diaxial (CH3+ACH;) strain Energy (kJ mol"') 6.0 3.8 3.8 15.4

Calculate the free-energy difference between the stable and unstable chair conformation of each the following trimethylhexanes. CH, CH, CH3 CH3 "CH3 B Support your answer with the drawing of conformer(s) and show your calculations. Energy cost by: H+CH3 eclipsed CH;++CH, gauche 1,3-diaxial (He»CH;) strain 1,3-diaxial (CH3+ACH;) strain Energy (kJ mol"') 6.0 3.8 3.8 15.4

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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g and lea X rilm/takeAssignment/takeCovalentActiviolocator=assignment-take TReferences) The cyclohexane derivativeshown exists primarily in the more stable of the two available chair conformations. Give the position, axial or equatorial, of each of the three groups shown in the more stable chair conformation. If a group divides its time equally between axial and equatorial positions, indicate this with ax/eq. The table of "Axial Strain Energies for Monosubstituted Cyclohexanes" found in the "Strain Energy Increments" section of the Reference tool is useful for answering this question. a CI "CH2CH3 Group a is Group b is Group c is Submit Answer Retry Entire Group 9 more group attempts remaining 8:32 PM 5/9/2021 hp 16 10 47 f10 f12 insert prt sc de & backspace
11. Draw all the conformations for the rotation about C2- using Newman C3 bond 2,3-dimethylbutane Projections. Box the most stable conformation and justify your answer.
This question is based on the five compounds (A-E) given in the picture. 1) Which of the compounds, A-E are constitutional isomers of each other?
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How to complete A?
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Draw a perspective representation of the most stable conformation of 3-methylhexane. Draw the molecule on the canvas by choosing buttons from the Tools (for bonds and charges), Atoms, and Templates toolbars. 1. [1] A 2 A Submit Request Answer H+ 2D EXP. CONT. Marvin JS by ChemAxon A I UZ OS J - PF CI Br
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2. a) Draw the most stable chair conformation of cis 1-isobutyl-2-methylcyclohexane. b) Draw a Newman projection of the best conformation of 2,3-difluorobutane looking down the C2-C3 bond. 3. Compound X has the formula C46H90O4. Compound X reacts with excess H2/Pd to give C46H9204. How many rings does compound X have? Show how you got your answer. 4. For each pair state whether the two are a) the same molecule, b) different compounds that are not isomers, c) constitutional isomers, d) diastereomers, or e) enantiomers. A) B) ÇH3 CH3 Br Br HS CI CI- SH H Br Br CH3 CH3
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Part C. The constitution of ectocarpene a volatile, sperm-cell-attracting material released by the eggs of the seaweed Ectocarpus siliculosus is shown below. In ectocarpene, all of the C-C double bonds have cis geometric configurations and the chirality center has an (S) absolute con- figuration. Please draw a spatially accurate structural representation of ectocarpene. Condensed Formula CH3CH₂CH=CH-CHCH=CHCH₂CH=CHCH2 Structural Formula