Which of the following statements is mathematically true regarding Odd-numbered cumulenes (systems w — Isomerism and Stereochemistry Chemistry Question
Question
Which of the following statements is mathematically true regarding Odd-numbered cumulenes (systems with 3, 5, or 7 consecutive double bonds)?
Answer: B
💡 Solution & Explanation
In odd cumulenes, the sequence of perpendicular p-orbitals perfectly realigns at the ends. The terminal $sp^2$ carbons are forced back into the exact same geometric plane. Because they are coplanar, appropriately substituted odd cumulenes will successfully exhibit Geometrical Isomerism.
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