Okanagan University College 7. In this method, the spacial orientation at a particular bond in the molecule is shown using a solid wedge line for the bond chosen and simple lines for all other bonds. Again, make sure that you see the different isomer represented by each diagram.
Exercises Try the following sawhorse diagram exercises .
Like sawhorse projections, Newman projections focus on one bond in the molecule. In this case the molecule is viewed as if looking straight down the bond, so that the two bonded atoms lie one behind the other. The front atom of the two is a point, the rear atom of the two is a circle. Bonds to the front atom are shown by lines issuing from the point which represents the front atom. Bonds to the rear atom are shown by lines starting from the circle which represents the rear atom.