Physicochemical Properties of Copper(II) Bis(2-ethylhexyl) Sulfosuccinate Reversed Micelles

Dispersed Molecular Aggregates. 1. Synthesis and Characterization of Nanoparticles of Cu2[Fe(CN)6] in H2O/AOT/n-Heptane Water-in-Oil Microemulsion Media

“…Colloidal CdS prepared in w/o microemulsion , has evidenced a tendency of shoulder formation in the blue region with increasing particle size. In a recent paper, blue shift in the spectra has been reported for Cu−AOT complex salt with increasing ω in the water/AOT/CCl 4 microemulsion system. The mild blue shift observed in the present study on colloidal Cu 2 [Fe(CN) 6 ] with increasing ω in w/o microemulsion of water/AOT/Hp is, therefore, in line with the CdS and Cu−AOT complex salt referred to above.…”

“…It may be mentioned here that the metallic copper particles synthesized in microemulsion of water/(TX-100 + 1-hexanol)/cyclohexane by the reduction of copper chloride by NaBH 4 does not exhibit plasmon band 67 owing to their surface covered by a monolayer of CuCl. In characteristic spectral behavior, microemulsion-embedded Cu 2 [Fe(CN) 6 ], CdS, 40 Cu-AOT complex, 65 and metallic copper 67 colloids deviate from prediction.…”

Incorporation of Antitubercular Drug Isoniazid in Pharmaceutically Accepted Microemulsion: Effect on Microstructure and Physical Parameters

“…The first water molecules are mainly located as Binterstitial^water bounded to the surfactant polar head group (43,44) and position of OH band reveals the interactions. The OH band of ME-A, B, C absorbs at lower frequency (than pure water, 3,400 cm j1 ) and that of ME-D, E at higher frequency (Table IV) (Table V).…”

FT-IR Investigation of the Urea State in AOT Reversed Micelles

“…In particular, the component at about 3230 cm −1 is lacking, whereas all the other components display blueshifts with respect to those of pure urea between +49 and +89 cm −1 . It is of interest that, in the case of interfacial water solubilized within AOT reversed micelles (i.e., when water-water interactions are totally substituted by water-AOT head group interactions), the shift of the water OH stretching band with respect to that of bulk water is about +55 cm −1 (35). The observed behavior could be rationalized assuming that, at R urea = 0.13, urea is predominantly dispersed as monomers among the AOT head groups, filling the most energetically favorable solubilization sites of the hydrophilic core of AOT reversed micelles.…”