Back to Resources
PRO

This interactive module is part of Founding Pro

You can still read this page for free. Upgrade to unlock full interaction and HD video downloads from the available catalog.

chemistry/structural-isomerism

View Pricing

Understanding Structural Isomerism

Interactive visualization of all types of structural isomerism: skeleton, position, functional group, geometric (cis-trans), optical (enantiomers), and conformational isomers.

Upgrade to Founding Pro to unlock downloads

Share

Key Concepts

Structural (Constitutional) Isomers

Molecules with the same molecular formula but different connectivity of atoms. Includes carbon skeleton, positional, and functional group isomers.

Stereoisomers

Molecules with the same connectivity but different spatial arrangement. Includes geometric (cis-trans) and optical (enantiomeric) isomers.

Carbon Skeleton Isomers

Isomers that differ in the arrangement of the carbon framework — straight chain vs. branched chain structures.

Chirality & Enantiomers

Mirror-image molecules that cannot be superimposed, like left and right hands. Key in pharmaceutical chemistry.

Understanding Structural Isomerism

**Isomerism** occurs when two or more compounds share an identical molecular formula but differ in the spatial arrangement or connectivity of their constituent atoms.

The two primary classifications are **Structural (Constitutional) Isomers**, which feature different bonding connectivity, and **Stereoisomers**, where atoms are connected in the same order but occupy different 3D positions in space.

Explore our interactive models to differentiate between **skeleton isomers** (carbon branching), **positional isomers** (functional group placement), and **enantiomers** (non-superimposable mirror images).

Frequently Asked Questions

Related Simulations