1,3-butadiene is drawn in the s-cis (cisoid) conformation in the introduction. Is this the preferred conformation? Explain. Why is the s-cis conformation shown?

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1,3-butadiene is drawn in the s-cis (cisoid) conformation in the introduction. Is this the preferred conformation? Explain. Why is the s-cis conformation shown?

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Answer 1 · 2016-02-09T23:32:54

There is no reason to prefer one to the other.

Explanation:

Since the middle bond between #C_2-C_3# is single, it can rotate freely.
Only if the #H#'s around that bond were replaced by other atoms, that either reject or attract one another, would there be a preferred (not obligate) position.
If not, then everything depends on physical circumstances like temperature and pressure.

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1,3-butadiene is drawn in the s-cis (cisoid) conformation in the introduction. Is this the preferred conformation? Explain. Why is the s-cis conformation shown?

1 Answer

Explanation:

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