chapter  8
4 Pages

Fischer projection

A Fischer projection is a two-dimensional depiction of a threedimensional organic molecule by way of visual projection (Wikipedia, ‘Fischer Projection’, 2013: 1). Hermann Emil Fischer developed this graphing system in 1891 (Wikipedia, Fischer Projection’, 2013: 1). The characteristics of Fischer projections are one or more stereogenic centers surrounded by four plain bonds aligned in a vertical fashion (Brecher, 2006: 1933). These Fischer projections were originally designed to depict carbohydrates (Brecher, 2006: 1933). In Fischer projections, all bonds are represented as horizontal or vertical lines and are the only representational configurations that are not invariant with respect to rotation of depiction (Wikipedia, ‘Fischer Projection’, 2013: 1 and Brecher, 2006: 1934). Both L-sugars and D-sugars are the ‘mirror’ image of the other with the D-sugars occurring naturally (Rensselaer Polytechnical Institute, 011: 2). Haworth projections are similar to Fischer projections and are used to depict sugars in ring form and Newman projections are used to represent stereochemistry of alkanes (Wikipedia, 2014,”Fischer Projection”: 3). Examples of Fischer projections (Rensselaer Polytechnic Institute, 2011: 1-2).