Isomers

Isomer

chemical compounds with different chemistry but the same chemical formula

Constitutional isomer

isomers with different connectivity

chemically distinct

n (normal, linear)

i (secondary substitution, iso-, sec-)

t (tertiary substitution, tert-)

Tautomer

rapidly interconverting isomers

changing between different chemical bonding patterns

Conformational isomer

stereoisomers that can be interconverted by rotating around a bond

Configurational Isomer

isomers that cannot be interconverted by rotation

Geometric isomer

configurational isomers whose interconversion is limited by a double bond

Z and E configuration

Diastereomer

configurational isomers with partial inverted chiral centers

Enantiomers

non-superimposable mirror images

all chiral centers are inverted