title: Engineering molecular crystals with abnormally weak cohesion.
abstract: Adding astutely placed methyl groups to hexaphenylbenzene increases molecular weight but simultaneously weakens key C-H···π interactions, thereby leading to decreased enthalpies of sublimation and showing that materials with abnormally weak cohesion can be made by identifying and then obstructing interactions that help control association.
authors: Department of Chemistry, Wilfrid Laurier University, Waterloo, Ontario N2L 3C5, Canada. kmaly@wlu.ca
authors: Kenneth E
authors: KE
authors: Maly
authors: Eric
authors: E
authors: Gagnon
authors: James D
authors: JD
authors: Wuest