1. PF Contest - Win "Conquering the Physics GRE" book! Click Here to Enter
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Chirality: why these molecules are not chiral?

  1. Jun 4, 2013 #1
    1. The problem statement, all variables and given/known data
    Look at the image please. The image shows 3 pairs of compounds. Explain why the first two are not chiral but the last one is chiral.

    Sem Título.jpg

    2. Relevant equations

    Ar means Aromatic ring

    Aquirais means aquiral
    Quirais means chiral

    3. The attempt at a solution

    A chiral carbon is linked to four different groups of atoms. However, this doesn't happen in any of them.
  2. jcsd
  3. Jun 4, 2013 #2
    A chiral molecule need not have a chiral carbon..morever a molecule having more than one chiral carbons may not be chiral...The only necessary condition for a molecule to be chiral is non superimposability on its mirror image....try making mirror images of the given compounds and try to superimpose them on each other using your mind...this method works well for such simple compounds
  4. Jun 4, 2013 #3
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted

Similar Threads - Chirality molecules chiral Date
Simple elementary question chiral molecule Feb 10, 2017
Second Chiral Center Mishap...? Sep 25, 2015
Specific Rotation of Chiral Molecules Dec 2, 2011
Chiral or achiral molecule? Nov 20, 2008