Chemistry Letters, Vol.39, No.9, 1004-1005, 2010
Reversible Aggregation and Deaggregation of Helicene-grafted Chiral Silica Nanoparticles Induced by Aromatic Solvents
Silica nanoparticles with sizes of 210 and 440 nm were grafted with (P)- or (M)-1,12-dimethylbenzo[c]phenanthrenes by silane coupling with helicenamidated (3-aminopropyl)trimethoxysilane. The chiral nanoparticles deaggregated and aggregated with sonication in soft and hard aromatic solvents.