E and Z Notation For Alkenes (+ Cis/Trans)
E and Z Notation For Alkenes Unlike C–C single bonds, C–C double bonds can’t undergo rotation without breaking the pi bond One consequence of this
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D and L Notation For Sugars
The D- And L- Notation For The Absolute Configuration Of Sugars And Amino Acids The terms D- and L- are often found in front of
Read moreIntroduction to Assigning (R) and (S): The Cahn-Ingold-Prelog Rules
Assigning R and S Configurations With the Cahn-Ingold-Prelog (CIP) Rules Enantiomers are stereoisomers that are non-superimposable mirror images of each other (by the way, molecules that are
Read moreEnantiomers vs Diastereomers vs The Same? Two Methods For Solving Problems
Are These Molecules Enantiomers, Diastereomers or The Same? A classic exam question is to determine whether two molecules are enantiomers, diastereomers or the same. This
Read moreAssigning R/S To Newman Projections (And Converting Newman To Line Diagrams)
Determining R and S Configurations of Newman Projections How do you determine R and S configurations on Newman projections? The key is to be able to quickly
Read moreOptical Rotation, Optical Activity, and Specific Rotation
Optical Rotation, Optical Activity, and Specific Rotation If you’ve been learning about stereochemistry, enantiomers, and diastereomers, the following might sound familiar: Diastereomers have different physical
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