This problem considers the conformational isomers of 2-methyl-butane shown below. The label for each carbon is indicated in red. Also shown is the Newman projection for the bond between carbons 2 and 3. The Newman projection is shown at its 0o position. The angle increases with clockwise rotation of the bonds on carbon 2. Which rotation angle(s) has(have) the lowest energy? (select all that apply) Which rotation angle(s) has(have) the highest energy? (select all that apply). Which rotation angle(s) has(have) a local anergy minima that is(are) not the lowest energy possible? (select all that apply).

Introductory Chemistry: A Foundation
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ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter20: Organic Chemistry
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This problem considers the conformational isomers of 2-methyl-butane shown below. The label for each carbon is indicated in red. Also shown is the Newman projection for the bond between carbons 2 and 3. The Newman projection is shown at its 0o position. The angle increases with clockwise rotation of the bonds on carbon 2.

Which rotation angle(s) has(have) the lowest energy? (select all that apply)

Which rotation angle(s) has(have) the highest energy? (select all that apply).

Which rotation angle(s) has(have) a local anergy minima that is(are) not the lowest energy possible? (select all that apply).

 
H3C 1
CH3
CHCH,
5
2 СHCH3
H.
CH3
increasing angle
H2C 3
H
H.
CH3
CH3
4
Transcribed Image Text:H3C 1 CH3 CHCH, 5 2 СHCH3 H. CH3 increasing angle H2C 3 H H. CH3 CH3 4
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