The compound 1-chloro-2,4-hexadiene possesses exactly two stereogenic double bonds () and its two st — Isomerism and Stereochemistry Chemistry Question
Question
The compound 1-chloro-2,4-hexadiene possesses exactly two stereogenic double bonds ($n=2$) and its two structural terminal ends are completely different, rendering it completely unsymmetrical. What is the total theoretical number of possible geometrical stereoisomers for this system?
Answer: B
💡 Solution & Explanation
For completely unsymmetrical molecules, there is absolutely no possibility of internal symmetry collapsing isomer pairs. Therefore, the total number of distinct stereoisomers is mathematically calculated using the simple $2^n$ exponent rule. With $n=2$, $2^2 = 4$ total distinct stereoisomers exist.
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