Chemistry Reference
In-Depth Information
1.Constitutional isomerism: different connectivity of atoms in molecules
1a) Positional isomerism
different connectivity,
but same functional
group
1b) Functional isomerism:
different functional
Groups
1c) Keto-enol tautomerism:
different position of
H-atoms in the molecule,
both forms interconvert
1d) Valence isomerism:
different number of
single and double
bonds
2. Stereo isomerism: same connectivity of atoms, but different orientation
2a) Cis-trans isomerism:
different position of
the Atoms for Double
bonds and in Rings
2b) Optical isomerism:
different Orientations
of four different atom
groups around one
C atom
2c) Conformational isomerism:
different position of
atoms by rotation
around the single bond
Fig. 7.2 Different forms of isomerism and corresponding terminology [
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