Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
Chapter14: Elimination
Section: Chapter Questions
Problem 2CTQ
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VISUALIZATION Energy Diagram for Conversion of Cis-2-Butene to Trans-2-Butene
600
500
400
Reactant
300
200
E, = 435 k 1021 J
100
--------
Initial state
AE=-7X 10" J_
-30
0°
30
60°
90°
120°
150
180
210
Reaction progress (angle of twist)
Cis-2-butene is one of two forms of butene where the middle two carbon atoms are joined by a double bond. The other form is trans-2-butene. The conversion of the cis form to the trans form is slow at room temperature, and the two
forms represent two distinct compounds. Conversion of the cis to the trans form involves rotation about the C-C double bond, which requires a substantial amount of energy on the molecular scale. Move the slider to observe the
different conformations and their energies along the pathway of the conversion.
Next (Introduction)
Potential Energy 10-2' J
Transcribed Image Text:VISUALIZATION Energy Diagram for Conversion of Cis-2-Butene to Trans-2-Butene 600 500 400 Reactant 300 200 E, = 435 k 1021 J 100 -------- Initial state AE=-7X 10" J_ -30 0° 30 60° 90° 120° 150 180 210 Reaction progress (angle of twist) Cis-2-butene is one of two forms of butene where the middle two carbon atoms are joined by a double bond. The other form is trans-2-butene. The conversion of the cis form to the trans form is slow at room temperature, and the two forms represent two distinct compounds. Conversion of the cis to the trans form involves rotation about the C-C double bond, which requires a substantial amount of energy on the molecular scale. Move the slider to observe the different conformations and their energies along the pathway of the conversion. Next (Introduction) Potential Energy 10-2' J
VISUALIZATION Energy Diagram for Conversion of Cis-2-Butene to Trans-2-Butene
600
500
400
Reactant
300
200
E, = 435 x 1021 J
100
Initial state
AE=-7 X 10 J
-30°
0°
30
60°
90°
120°
150°
180°
210°
Reaction progress (angle of twist)
Consider the linkage between the two central C atoms in cis-2-butene. How many sigma bonds join these two C atoms?
Check
Next (1 of 11)
Potential Energy 1021 J
Transcribed Image Text:VISUALIZATION Energy Diagram for Conversion of Cis-2-Butene to Trans-2-Butene 600 500 400 Reactant 300 200 E, = 435 x 1021 J 100 Initial state AE=-7 X 10 J -30° 0° 30 60° 90° 120° 150° 180° 210° Reaction progress (angle of twist) Consider the linkage between the two central C atoms in cis-2-butene. How many sigma bonds join these two C atoms? Check Next (1 of 11) Potential Energy 1021 J
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