potential energyBrb) Translate the Newman projection below to its wedge-and-dash drawing.FH.OHCH3CIc) Isopentane (2-methylbutane) is a compound containing a branched carbon chain. Drawa Newman projection of six conformations about the C2-C3 bond of isopentane. On thecurve of potential energy versus angle of internal rotation for isopentane, label eachenergy maximum and minimum with one of the conformations.0°。FABDCangle of internal rotationEF360° (=0°)JDownl

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Answered: potential energy Br b) Translate the…

Chemistry

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Chapter1: Chemical Foundations

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

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Organic Chemistry Loudon | Parise SEVENTH EDITION presented by Macmillan Learning Isopentane (a.k.a. 2-methylbutane) is a compound containing a branched carbon chain. A Newman projection is given for six conformations about the C2-C3 bond of isopentane. On the curve of potential energy versus angle of internal rotation for isopentane, label each energy maximum and minimum with one of the conformations. Answer Bank CH3 CHa H3C B H H3C. H3C CH3 HH -CH3 CH3 A E HH 0° angle of internal rotation 360° (=0) Ho CH3 H, CH3 H3C CH3 H. H,C H H CH potential energy
Consider rotation about the indicated bond in the molecule below. Which Newman Projection formula best represents the most stable conformer of the molecule with respect to rotation about the indicated bond? [As noted below: there is no steric strain between -H and -Et that have a gauche, staggered relationship] H CH3 Br-C-C-CH₂CH3 H. H Br CH₂CH₂ 1 CH3 H CH3CH₂ H Br H₂C || H H₂C H Br H ||| Select one: OA. I O B. II O C. III O D. All conformers have identical energies. CH₂CH3 H NOTE CH3CH₂ H no steric strain
Organic Chem HW
6. Newman projections to Lewis structures From the following Newman projections, draw the corresponding Lewis structure in the same conformation. A) B) H. H CH3 H₂C N H OH CI Br CH3 H OH CH3
4. Which Newman projection corresponds to point A on the graph of potential energy vs. rotation about the C₂-C3 bond? Potential Energy- (A) (C) 0 H CH3 Q. 'Н H H H₂ H 60 CH₁ H -CH3 H A CH3 120 180 Degrees of Rotation (B) (D) n 300 240 HH H H 360 CH3 CH3 CH3 HDCH3 H&H H
Consider the following Newman projections: CH3 CH3 H. CH3 H. H. CH3 H A В Which of the following statements is/are true? i) Newman projection A and B represent conformers of the same molecule. ii) In both conformers shown, A and B, there is no torsional strain. iii) Newman projection A shows the lowest energy conformer for that molecule. O i only O i and ii only O ii only O i and iii only O i, i and iii
Which Newman projection corresponds to point A on the graph of potential energy vs. rotation about the C2-C3 bond?
Sighting down the Ci-C2 bond axis of 1-bromopentane, Br-CH2-CH2CH2CH»CH3, draw the Newman projection of a) the anti staggered conformation b) the gauche staggered conformation c) the two eclipsed conformations. Which eclipsed structure would you expect to have the highest strain energy?
Convert the following bond-line structure to a Newman projection (look from C5 to C4). Then draw the highest and lowest energy conformer for the molecule: H H
. Draw the two most stable Newman projections of 3-methylpentane by viewing along the C2-C3 bond.
Sight along the C2-C1 bond of 2-methylpropane (isobutane).(a) Draw a Newman projection of the most stable conformation.(b) Draw a Newman projection of the least stable conformation.(c) Make a graph of energy versus angle of rotation around the C2-C1 bond.(d) Assign relative values to the maxima and minima in your graph, given that an H↔H eclipsing interaction costs 4.0 kJ/mol and an H↔CH3 eclipsing interaction costs 6.0 kJ/mol.
5. a-G a- Convert the following Newman projection into the bond line structural formula. Must use stereobonds to indicate the orientation of the groups. H3CO CN b- Draw the anti, gauche, and eclipsed conformations of the following molecule using Newman projection. H H H H c- i. Which cyclopropane molecule has the highest torsional strain? ii. Which cyclopropane molecule has the lowest torsional strain? C b a

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