unit 4 defintions all
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9 Terms
isomers
compounds with the same molecular formula but different molecular structures
stereoisomers
2 or more isomers have the same structural formula but different arrangements of atoms in space
optical isomers
pairs of molecules that are non superimposable images
chiral
exists as 2 mirror images its form is not superimposable
chiral centre
an atom at which 4 different atoms or groups are bonded causing nonsuperimposable images
racemate/ racemic mixture
a mixture of equal amount of 2 optical isomers of a chiral compound which are optically inactive
delocalisation
the process by which electrons are spread over several atoms and help bond them together
Acid derivatives
an organic compound related to a carboxylic acid formula RCOZ where Z=cl,NHR,OR,OCOR
