Salen‐Based Amphiphiles: Directing Self‐Assembly in Water by Metal Complexation

Monolayers of Chiral Imidazole Amphiphiles: Domain Formation and Metal Complexation

Supra-amphiphiles formed by complexation of azulene-based amphiphiles and pyrene in aqueous solution: from cylindrical micelles to disklike nanosheets.

We have fabricated supra-amphiphiles by charge-transfer complexation of azulene-based amphiphiles and pyrene in water, and the self-assembled nanostructures can reversibly change between cylindrical micelles and disklike nanosheets in response to interaction with guest molecules.

Metal–sulfide complexation in seawater

The conditional stability constants of metal–sulfide complexes were determined in pH 8 seawater at various salinities, by Ž . flow-analysis with detection by cathodic stripping voltammetry FA-CSV . Two methods were used. The first method was titration of the sulfide by metal with detection of the free sulfide by FA-CSV. The titrant metals were Ag, Cd, Co, 2q 2q 2q 2q 3q 3q Ž . Fe , Mn , Pb , Zn...

Influence of Metal Ion Complexation on the Acid Dissociation of 4'-Carboxybenzo-24-Crown-8 in an Ethanol-Water Mixture

A spectrophotometric method was used to determine the acidity constant of 4'-carboxybenzo-24-crown-8 in 52% (w/w) ethanol-water mixture. The acid dissociation constant, Ka, was found to increase in the presence of Na+, K+, Rb+, Cs+ and Tl+ ions. The formation constants of the resulting 1:1 complexes between the carboxycrown a...

New mesophases formed by water soluble discoidal amphiphiles

2014 We present the first examples of lyotropic discotic nematic and columnar (hexagonal) mesophases obtained by dissolution of non-ionic, disk-like amphiphilic mesogens (hexa-polyethyleneoxy derivatives of triphenylene) in water. The phenomenon of « solvent driven aggregation » is shown to be a practicable route to new and novel mesophases with structures and properties intermediate to and enc...