[Home]History of Optical isomerism

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Revision 15 . . (edit) October 30, 2001 7:44 pm by Sodium
Revision 14 . . (edit) October 19, 2001 1:36 am by Sodium
Revision 10 . . (edit) October 17, 2001 7:06 am by Taw [more format fix]
  

Difference (from prior major revision) (minor diff, author diff)

Changed: 2c2
non-superimposable mirror images(*) of each other. The way the 3D bonds are arranged means that they are also not superimposable. Optical isomers are known as chiral molecules (prounounced ki-rall) .
non-superimposable mirror images(*) of each other. Optical isomers are known as chiral molecules (prounounced ki-rall) .

Changed: 4c4
The study of optical isomerism is called stereochemistry and optical
First discovered by Louis Pasteur nineteenth century, the study of optical isomerism is called stereochemistry. Optical

Changed: 13c13
This form of isomerism can arise when an atom (usually carbon) is surrounded by four different functional groups. Swapping two of the groups round can arise in two different molecules - mirror images of each other. These optical isomers are called enantiomomers.
This form of isomerism can arise when an atom (usually carbon) is surrounded by four different functional groups. Swapping two of the groups round can arise in two different molecules - mirror images of each other.

Changed: 26c26,28
D-form Amino acids tend to taste sweet whereas L-forms are usually tasteless. This is again because of our chiral taste molecules. The smells of oranges and lemons are examples of the D and L enantiomers.
D-form Amino acids tend to taste sweet whereas L-forms are usually tasteless. This is again due to our chiral taste molecules. The smells of oranges and lemons are examples of the D and L enantiomers.

Penicillin works by stereoisomeric means. The antibiotic only works on peptide links of D-alanine which occur in the cell walls of bacteria - but not in humans. The antibiotic can only kill the bacteria and not us because we don't have these D-amino acids.

Changed: 30c32
responsible for the teratogenic effects.
responsible for the teratogenic effects.

Added: 32a35,41

See also:

#Cahn Ingold Prelog priority rules



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