Definition for Newman projection

From Biology Forums Dictionary

A Newman projection is a diagram used to depict a specific conformation of a molecule.

For example: Staggered conformation of ethane.

newmanprojection1.png

To draw the staggered conformation of ethane as a Newman projection look at the molecule from the point shown above. The front carbon atom and the three carbon-hydrogen bonds originating from it are seen.

newmanprojection2.png

The rear carbon atom is not seen, but the three carbon-hydrogen bonds originating from it are.

newmanprojection3.png

This is the Newman projection of staggered conformation of ethane.

Another example: Eclipsed conformation of ethane.

newmanprojection4.png