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document Newman Projections
Check out this interactive stereochemistry tutorial on the ChemEdDL   Newman projections are simply another way to draw organic molecules that specifically helps in visualizing conformational isomers.  These projections are drawn by looking directly along a particular bond in the ...
25 Jan, 2013 Comments: 0
document Sawhorse Diagram
Check out this interactive stereochemistry tutorial on the ChemEdDL Sawhorse diagrams are similar to wedge-dash diagrams, but without trying to use "shading" to denote the perspective. The representation to the right of propane has been drawn so that we are looking at the molecule, which is...
25 Jan, 2013 Comments: 0
document Wedge-and-Dash Diagrams
Check out this interactive stereochemistry tutorial on the ChemEdDL   Usually drawn with two bonds in the plane of the page (solid lines), one in front (wedge), and one behind (dashed) to give the molecule 3-D perspective. When drawing wedge-dash it is a good idea to visualize the...
25 Jan, 2013 Comments: 0
document Drawing Lewis Structures
CHECK OUT THE PERIODIC TABLE LIVE! at the CHEMED DL One of the earliest and most important skills needed in organic chemistry is the ability to represent molecules in 2D (on paper).  To do this, you have to master the shared electron pair (covalent) Lewis bonding model.  Before...
17 Jun, 2013 Comments: 0
document Constitutional Isomers
Compounds that have the same molecular formula but different chemical structures are called isomers. Remember isomerism is a property between a pair (or more) of molecules, i.e. a molecule is an isomer of another molecule. A similar relationship is that of brother or sister... you can only be a...
17 Jun, 2013 Comments: 0

Department of Chemistry & Chemical Biology