Pick a molecule to begin. Search above — try butane.
⚠2D coordinates only. PubChem has no computed 3D conformer for this compound, so the
structure is flat — bond angles and torsions here are drawing artefacts, not real geometry.
Molecule
Conformational analysis
Choose a bond, then look straight down it.
⚠
180°
——
Idealised torsional/steric increments, not a computed force field —
the shape and the ordering are what matter.