# What is a Newman projection?

Jun 27, 2016

A Newmann projection is a projection of an organic molecule onto the two-dimensional printed page.

#### Explanation:

The picture gives a Newmann projection of $\text{n-butane}$, viewed along the ${C}_{2} {C}_{3}$ axis. The names of each conformational isomer are really immaterial. They are just there for convenience.

As with any of these problems, anyone can fail to see the what's relevant on a diagram; it is easier to see the geometry with a three-dimensional model, and such models are always allowed in examinations. Of course, you have to practise using such models, and also practise their representation on the printed page.