isomer Definition
each of two or more compounds with the same formula but a different arrangement of atoms in the molecule and different properties.
Using isomer: Examples
Take a moment to familiarize yourself with how "isomer" can be used in various situations through the following examples!
Example
The two isomers have different boiling points.
Example
The drug exists in two isomeric forms.
Example
The isomers can be separated by chromatography.
isomer Synonyms and Antonyms
Synonyms for isomer
- isomorph
- isomeric compound
Phrases with isomer
an isomer that differs in the arrangement of atoms in the molecule
Example
Butane and isobutane are structural isomers.
an isomer that has the same molecular formula and sequence of bonded atoms, but differs in the three-dimensional orientations of their atoms in space
Example
Enantiomers are stereoisomers that are non-superimposable mirror images of each other.
cis-trans isomer
a stereoisomer that has the same covalent bonds but differs in the spatial arrangement of atoms or groups around a double bond or ring
Example
Cis-2-butene and trans-2-butene are cis-trans isomers.
Summary: isomer in Brief
'Isomer' [ˈaɪsəmər] refers to two or more compounds with the same formula but different properties due to the arrangement of atoms in the molecule. The term covers different types of isomers, including structural isomers, stereoisomers, and cis-trans isomers. Examples of usage include 'The two isomers have different boiling points.' and 'The drug exists in two isomeric forms.'
