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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: FictionDurden on November 18, 2004, 02:48:04 PM

Title: cis-trans
Post by: FictionDurden on November 18, 2004, 02:48:04 PM

How do I determine cis-trans from a line structure? I have an example attached. I know cis means having the same groups on the same side, and trans is same groups on opposite sides, but I'm having trouble determing this with line structures.

Title: Re:cis-trans
Post by: Mitch on November 18, 2004, 05:27:49 PM

That would be trans. A cis conformation would have the two alkyl groups on the same side.

Title: Re:cis-trans
Post by: FictionDurden on November 18, 2004, 05:44:37 PM

Which alkyl groups are you talking about?

Title: Re:cis-trans
Post by: Mitch on November 18, 2004, 06:39:48 PM

the ones attached to the double bond. How many thins are attached to the double bond? There are 2 hydrogens and 2 alkyl groups. The hydrogens are trans to each other and so are te alkyl groups.