Auwers-Skita Rule

Name:
Auwers-Skita Rule
Detailed information:
In its original form, the rule stated that in cis-trans isomeric hydroaromatic compounds, the cis had the higher density and refractive index and the lower molecular refractivity. A more modern statement of the von Auwers-Skita rule (which has undergone several modifications since it was first enunciated) is that, among alicyclic epimers not differing in dipole moment, the isomer of highest heat content has the higher density, index of refraction, and boiling point.