Macmillan Learning Translate the given conformer from the wedge-and-dash drawing into its Newman projection. You might find it helpful to make a model, then manipulate it to the desired viewpoint. H3C H Cl Br Which Newman structure matches the conformer? CI H H CH3 H CH3 -CH3 Br CH3 H D Br H -CH3 H H H CH3 H Br CH3 Br -CH3 CH3

Macmillan Learning Translate the given conformer from the wedge-and-dash drawing into its Newman projection. You might find it helpful to make a model, then manipulate it to the desired viewpoint. H3C H Cl Br Which Newman structure matches the conformer? CI H H CH3 H CH3 -CH3 Br CH3 H D Br H -CH3 H H H CH3 H Br CH3 Br -CH3 CH3

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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Consider the Newman projection below. a. Draw a full Lewis structure of this molecule with R1=Me,R2=Et , and R3=iPr . b. Given the sizes of these R groups (R3R2R1) , does the Newman projection above show thelowest potential energy conformation of this bond? If not, draw a Newman projectionshowing the lowest P.E. conformation (sighting down this same bond). c. To draw a Newman projection in the lowest P.E. conformation, the following rule of thumbusually applies: Place the largest group on the front carbon anti to the largest group on theback carbon. Is your answer to the previous question consistent with this rule of thumb?
A trisubstituted cyclohexane with three substituents-red, green, and blue-undergoes a ring-flip to its alternate chair conformation. Identify each substituent as axial or equatorial, and show the positions occupied by the three substituents in the ring-flipped form.
I H. H H. H Identify the Newman projection that depicts the eclipsed conformation of butane. CH3 I H CH3 H CH3 H CH3 || IV `H I H H H CH3 H H V H3C CH3 J HH H CH3 H -H CH3 FH CH3 A) I B) II C) III D) IV E) V
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
2. Identify the highest energy conformation of butane as a Newman projection looking down the C2-C3 bond. HH H CH3 H. H HCH3 CH3 -CH3 CH3 H CH3 H CH3 I a. I b. ll c. III d. IV H H || ΙΙ -I H ||| CH3 H IV H
6. Consider the following Newman Projections. Which is the most stable conformation? Which is the least stable? Why? H3CB CH3 CH3 H. H. Br H. CH3 H CH3 CH3 Br H B C
Which of the following is the correct Newman projection for the following compound as viewed down the indicated bond in the conformation shown?" Br H CI 00000 ==>> CH₂ Br 11 H. CH₂ Br ||| CH₂ H IV CH₂ Br CH₂
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
Q2. Consider the structure shown H₂N G C !!! H₂C I H₂C. HN CH H₂ H₂C 1 CH₂ HN CH H₂ NH,* C=0 C=0 NH₂ CH H₂C HO + HN 11 H₂C N H CH₂ G=0 NH CH NH C=0 CH H₂N. C CH₂ H₂C NH H₂ NH₂ a. Would you consider this a zwitterion or not? Explain. b. If not, would the pH have to increase or decrease to make it a zwitterion? Explain.
DI Chrome с File Edit View History Aktiv Chemistry 1 C app.101edu.co E ||| esc ! 1 H H Н. Q CH3 CH3 H @ H CH3 2 I I H CH3 V X W Bookmarks Profiles Tab Window Help H + H || Identify the Newman projection that depicts the anti conformation of butane. H3C CH3 1,503 H # H 3 IV H CH 3 HE H D FH CH3 I E H $ H 4 CH3 ∙H CH3 JUN 30 R % 5 T 8 6 121 MacBook Pro & PAGES 7 W Y U 1 8 A) I B) II C) III D) IV E) V ~ - 9 A 0 0 O 15% ( P Thu 8: + 11 { [ K
We consider the following molecule A: And. THIS Of the following Newman projections, indicate: MeEt F F Me 1 Br 5 Br F And Me THIS CH2CH3 AT CH2CH3 "CH3 Br Br Me Me. THIS 2 Br 6 And And .And And Br CI Me F And 3 F And 7 Me the one that corresponds to the least stable conformation of molecule A: And Br And the one that corresponds to the most stable eclipsed conformation of molecule A: CI Me THIS And Br And Br F F And Me And Choose... Choose... the one that corresponds to molecule A as seen by the eye of the observer in the statement: Choose... the one that corresponds to the least stable staggered conformation of molecule A: the one that corresponds to the most stable conformation of molecule A: Choose... Choose... ◆
Which of the following is a Newman projection for the following compound as viewed down the indicated bond in the conformation shown? Save Et H. I CH3 Et CH3 CH3 CH3 Et H H. I Et CH3 -I || Et Da CH3 H CH3 Et I H₂ ||| CH3 H. I -I H CH3 H CH3 IV