Indiana University Purdue University Indianapolis
Search:     Advanced search
Sub Categories
 
folder Ways to Draw 3D Structures in 2D (4)
folder Types of Isomers (1)


Showing: 1-7 of 7  
Articles
document Enantiomers
Check out this interactive stereochemistry tutorial on the ChemEdDL Molecules that are non-superimposable mirror images are called enantiomers, just look at the two molecules shown below.  The term enantiomers always refers to a relationship between two compounds.  Note that your left...
25 Jan, 2013 Comments: 0
document Stereogenic or Chiral Center
Check out this interactive stereochemistry tutorial on the ChemEdDL A stereogenic center is also known as a chiral center.  It is characterized by an atom which has (typically four) different groups bound to it in such a manner that its mirror image is non-superimposable.  Below are...
25 Jan, 2013 Comments: 0
document Optical Activity
Check out this interactive stereochemistry tutorial on the ChemEdDL Optical activity is the ability of a chiral molecule to rotate plane-polarized light. It is measured using a polarimeter, which consists of a light source, polarizing lens, sample tube and analyzing lens. When light...
25 Jan, 2013 Comments: 0
document Optical Purity
Check out this interactive stereochemistry tutorial on the ChemEdDL The optical purity or the enantiomeric excess (ee%) of a sample can be determined as follows: Optical purity = % enantiomeric excess = % enantiomer1 - % enantiomer2      0;    ...
25 Jan, 2013 Comments: 0
document Absolute and Relative Configurations
Check out this interactive stereochemistry tutorial on the ChemEdDL When the precise arrangement of substituents at a stereogenic center is known, the absolute configuration of the molecule is known.  This is usually accomplished by solving the x-ray crystal structure of a molecule, a...
25 Jan, 2013 Comments: 0
document Stereospecific Reaction Questions
 Check out this interactive stereochemistry tutorial on the ChemEdDL   Q1:  Bromine reacts with alkenes to give dibromides via a stereospecific reaction. Draw the dibromide products produced by the addition of Br2 to the...
25 Jan, 2013 Comments: 0
document Labeling Enantiomers
Check out this interactive stereochemistry tutorial on the ChemEdDL The Cahn-Ingold-Prelog R/S rules are used for labeling enantiomers. Note: The terms stereogenic, chiral, or asymmetric can be used interchangeably below. 1. Identify the stereogenic centers (most commonly an sp3 C with 4...
25 Jan, 2013 Comments: 0

Department of Chemistry & Chemical Biology