The formation of crystalline 1:1 molecular complexes was examined between a pair of acylurea derivatives (1 and 2) having a wide variety of alkyl groups as nonpolar substituents (R1 and R2). The complex formation has been found to depend on the shapes of R1 and R2. This suggests the presence of specific weak interactions between the nonpolar groups.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.