The discussion centers on the correlation between density and melting point in alkenes, specifically cis and trans 1,2-dichloroethenes. It is established that cis 1,2-dichloroethene exhibits a higher density but a lower melting point compared to its trans counterpart. The participants conclude that packing arguments cannot adequately explain these observations, while the dipole moment is identified as a significant factor influencing boiling points, particularly noting that the more polar cis form has a higher boiling point. However, the dipole moment does not account for the observed trends in melting point and density.
PREREQUISITESChemistry students, organic chemists, and researchers interested in the physical properties of alkenes and their molecular interactions.