A series of N-benzoyl-N′-aryl thiourea derivatives (1–4) can form stable gels from a variety of organic solvents ranging from protic to aprotic or polar to apolar at concentrations below 5mg/mL. The gelation properties and structures of the resulting gels were investigated by 1H- NMR, FTIR, UV–vis, SEM, and XRD. The gels were anion-responsive and the driving forces for its formation were the hydrogen bonding and van der Waals interaction. The SEM ...
[Meudtner, Robert M.; Ostermeier, Marc; Goddard, Richard; Limberg, Christian; Hecht, Stefan Chemistry - A European Journal, 2007 , vol. 13, # 35 p. 9834 - 9840]