I have to draw a Newman projection for a molecule, sighting along the bond between a carbon and nitrogen. Given that the nitrogen is behind the carbon from this viewing angle, how would I depict the nitrogen? I know that I cannot draw it as a circle, as that represents carbon, so I am assuming that it is not possible to draw a Newman projection of this molecule from this particular angle. Is that a valid assumption?

And, if that is true, what would be considered an acceptable answer to that question? Should I just draw a standard 3D structure from the proposed viewing angle?

  • 3
    $\begingroup$ The forward atom is represented as a dot. The atom farther back is the circle. $\endgroup$
    – Zhe
    Apr 17 '17 at 20:07

If it were up to me, I would:

  1. Draw the nitrogen atom as if it were carbon but label it as "N".

  2. Assuming normal valence (e.g. an amine but not a nitro conpound), include the formally nonbonded electron pair as one of the substituents on nitrogen.


You can just draw the nitrogen from the centre of the circle using a lesser "wedge" angle on the circle to indicate an eclipsed bond.


Your Answer

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

Not the answer you're looking for? Browse other questions tagged or ask your own question.