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Recitation 4 TR (9/17 and 9/19)aurel cumpyCH 2510CallamPre-Recitation Worksheet 41. Draw the Newman projection looking down the C3-Cz bond from the direction shown.HHCH3BrBr2CH3Conformation AEnergyInteractionEnergyInteraction(kcal/mol)(kcal/mol)1.0Н, нeclipse0.0H-H gauche1.5CH3, H eclipseBr-H gauche0.01.6eclipseCH3-CH3 gaucheBr, H0.94.0CH,-H gaucheeclipse0.0CH3, CH3Pr-H gauche2.80.0CH3, Br eclipseCH,-Br gauche0.62.9Br, Cl eclipseBr-Cl gauche0.7Pr, H eclipse2.5iDr Br aauehoI

Question

How do you depict the c(ch3)2 bond at carbon 4 in a Newman projection?

Recitation 4 TR (9/17 and 9/19)
aurel cumpy
CH 2510
Callam
Pre-Recitation Worksheet 4
1. Draw the Newman projection looking down the C3-Cz bond from the direction shown.
HH
CH3
Br
Br
2
CH3
Conformation A
Energy
Interaction
Energy
Interaction
(kcal/mol)
(kcal/mol)
1.0
Н, н
eclipse
0.0
H-H gauche
1.5
CH3, H eclipse
Br-H gauche
0.0
1.6
eclipse
CH3-CH3 gauche
Br, H
0.9
4.0
CH,-H gauche
eclipse
0.0
CH3, CH3
Pr-H gauche
2.8
0.0
CH3, Br eclipse
CH,-Br gauche
0.6
2.9
Br, Cl eclipse
Br-Cl gauche
0.7
Pr, H eclipse
2.5
iDr Br aaueho
I
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Recitation 4 TR (9/17 and 9/19) aurel cumpy CH 2510 Callam Pre-Recitation Worksheet 4 1. Draw the Newman projection looking down the C3-Cz bond from the direction shown. HH CH3 Br Br 2 CH3 Conformation A Energy Interaction Energy Interaction (kcal/mol) (kcal/mol) 1.0 Н, н eclipse 0.0 H-H gauche 1.5 CH3, H eclipse Br-H gauche 0.0 1.6 eclipse CH3-CH3 gauche Br, H 0.9 4.0 CH,-H gauche eclipse 0.0 CH3, CH3 Pr-H gauche 2.8 0.0 CH3, Br eclipse CH,-Br gauche 0.6 2.9 Br, Cl eclipse Br-Cl gauche 0.7 Pr, H eclipse 2.5 iDr Br aaueho I

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The new conformations of compounds can be drawn and analyzed by Newman projections. A Newman projection visualizes different conformations of...

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