Norbornene chaotropic salts as low molecular mass ionic organogelators (LMIOGs)

Abstract

Phenylalanine functionalised norbornene (9:Na) functions as a potent, low molecular-mass (M_W = 333 Da) ionic organogelator with a minimum gelating concentration of 0.5 wt% in THF, i-PrOH, 1,4-dioxane and n-BuOH. Fibrous crystals form in the gel and X-ray crystallography identified a cation mediated helical assembly process controlled by the chirality of the phenylalanine. In addition to excellent gelating properties 9:Na readily forms aqueous biphasic and triphasic systems.