Binding of Nitrodiphenylamines to Reverse Micelles of AOT inn-Hexane and Carbon Tetrachloride: Solvent and Substituent Effects

Binding Constant of Amines to Water/AOT/n-Hexene Reverse Micelles. Influence of the Chemical Structure

“…The laser flash photolysis experiments allowed us to confirm that tertiary amines, aliphatic and aromatics, are not incorporated to the micellar pseudophase since the Ru(bpy) 3 +1 ion, previously observed in water, was not detected in the micellar media…”

“…However, in reverse micelles systems data are scanty [1]. In our group we have studied the binding constant of nitroanilines and diphenylamines to water/AOT/n-hexane reverse micelles [2,3].…”

“…The formation of the Ru(bpy) 3 +1 ion by laser flash photolysis of a mixture of Ru(bpy) 3 +2 and amines was used as a further confirmation of the distribution of the amines between the micellar pseudophase and the organic bulk.…”

Binding of o-nitroaniline to nonaqueous AOT reverse micelles

“…To know the location of molecular probes in the aggregates, can give information about their residing place in biological systems. 6 We have previously studied the properties of a series of nitroanilines, 17 diphenylamines, 18 carotenoids 19 and amines 20 in reverse micelles of AOT in n-hexane or n-heptane at different W 0 .…”

“…However upon addition of water, the partition constants diminish because there is a competition between the hydrogen bond donor solutes and water as solvating agent for the AOT. [17][18][19] Besides water, some polar organic solvents, having high dielectric constants and very low solubility in hydrocarbon solvents, can also be encapsulated in reverse micelles. 21 The most common polar solvents used include formamide (FA), dimethylformamide (DMF), dimethylacetamide (DMA), ethylene glycol (EG), propylene glycol (PG), and glycerol (GY).…”