Isomers Flashcards
These types of molecules have the same formulas, number of atoms of each element but differ in the chemical arrangement of atoms.
isomers
These types of isomers differ by how the atoms are connected, they may form different functional groups and bonding patterns.
structural
(or constituional)
/isomers/constitutional(structural)/
This type of constitutional isomer differs from the original molecule by the arrangement of carbons in the generic molecule, changing the skeleton.
structural chain
(contains skeletal)
/isomers/constitutional(structural)/chain
This type of constitutional isomer differs from the original molecule by the position of the same functional group.
position
/isomers/constitutional(structural)/pos
This type of structural isomer differs from the original molecule by the individual atoms position; this makes the molecule different functional group.
functional group
/isomers/constitutional(structural)/func
This class of isomer contains the same functional groups and connectivity, they differ by the arrangement of atoms and bonds.
stereoisomers
/isomers/stereoisomerism(spatial isomers)/
This type of stereoisomerism isomer differs from the original molecule by the non-superimposable image.
enantiomers
or optical isomerism
/isomers/stereoisomerism(spatial isomers)/optical
This type of stereoisomerism isomer differs from the original molecule by being not a non-superimposable image.
diastereomers
or geometric
/isomers/stereoisomerism(spatial isomers)/Diastereomers
This type of diastereomer describes terms where one term indicates that functional groups are on the same side of the carbon chain and the second term indicates the opposite.
cis-trans
(also known as geometric or configurational)
CIS = Functional Groups on the same side of the carbon chain.
Trans = Functional Groups are on apposing side of carbon chain.
/isomers/stereoisomerism(spatial isomers)/Diastereomers/cis-trans
This type of notation describes terms in diastereomer, more specifically this term indicates the absolute stereochemistry of the double bond.
e-z notation
(E-Z-configuration/convention)
/isomers/stereoisomerism(spatial isomers)/Diastereomers/e-z
This type of stereoisomerism describes molecules that are able to interconverted by rotations of formally single bonds.
conformational
/isomers/stereoisomerism(spatial isomers)/Diastereomers/Conformers
This type of stereoisomerism describes molecules that are able to interconverted by rotations around a particular bond.
rotamers
/isomers/stereoisomerism(spatial isomers)/Diastereomers/Conformers/Rotamers
