According to my organic chemistry textbook, Cis-Decalin has the two rings nearly perpendicular to one another, with the middle hydrogens cis to one another. Trans-Decalin has the ring nearly flat (planar), with the middle hydrogens trans to one another.

However, typing Cis-Decalin and Trans-Decalin into ChemBioDraw (where they appear correctly in 2D form) and copying them into ChemBio3D shows the exact opposite conformations.

Is this a bug with ChemBio3D, or a mistake in the textbook?

  • 1
    $\begingroup$ I couldn't reproduce your problem. I my chem3d structures look as they should. $\endgroup$ – Mikael Jumppanen Apr 22 '15 at 13:16

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.