Organic Reactions
Need to illustrate your chemical documentation with chemical structures? Need to view and analyze the geometry of 3D chemical structures? Need to predict C-13 or H-1 NMR shifts? How about using molecular mechanics to explore reaction energetics.. All of the Classic Organic Reactions images were created with ChemPen software.
The link address is: http://www.chempensoftware.com/organicreactions.htm