600 500 400 Reactant 300 200 E, = 435 10 J 2 100 아 Initial state AE7X 10J -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. Consider the linkage between the two central C atoms in cis-2-butene. How many sigma bonds join these two C atoms? Potential Energy 10 J

600 500 400 Reactant 300 200 E, = 435 10 J 2 100 아 Initial state AE7X 10J -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. Consider the linkage between the two central C atoms in cis-2-butene. How many sigma bonds join these two C atoms? Potential Energy 10 J

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter3: Organic Compounds: Alkanes And Their Stereochemistry

Section3.SE: Something Extra

Problem 52AP: Increased substitution around a bond leads to increased strain. Take the four substituted butanes...

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