Structure Characterization and Properties of Metal–Surfactant Complexes Dispersed in Organic Solvents

Abstract

This work describes the synthesis and characterization of metal-surfactant complexes. Dioctyl sulfosuccinate and dodecylbenzenesulfonate are associated with multivalent aluminum, iron, and vanadium ions using an ion exchange reaction. The metal complexes are dispersible in various organic solvents. In solvents with low polarity, the complexes form "inverse" macromolecular structures with multiple metal ions. In contrast, in alcohols, the complex size is reduced, showing a more disperse conformation. The metal and surfactant ions are still strongly bonded to each other in all the solvents probed. Small-angle X-ray and neutron scattering (SAXS and SANS) are used to characterize the structures. Simultaneous fitting of neutron and X-ray scattering spectra is performed in order to obtain an accurate description of the system. Scattering results are also validated by performing molecular dynamics (MD) simulations. The conductive and electrochemical properties of the complexes in solution are also evaluated. The dispersion of metal-organic complexes significantly increases electric conductivity, and some metal ions in the core of the complexes are shown to be electrochemically active in apolar solvents.

Genesis of electron deficient Pt1(0) in PDMS-PEG aggregates

“…Numerous surfactants with diverse functionalities have been used in the synthesis of metallic nanoparticles 11,12 or metal ion-surfactant complexes 13,14 in micro-emulsions system. The synthesis of discrete reduced metal atoms with weak coordination, which are sufficiently stable in storage at moderate temperature has not been reported.…”

Aggregation response of triglyceride hydrolysis products in cyclohexane and triolein

“…An overwhelming majority of computational studies of reverse micellar systems have focused on the anionic Aerosol OT surfactant (sodium bis-(2-ethylhexyl)sulfosuccinate) [37][38][39][40][41][42][43][44][45][46][47] . In re-cent years, however, there has been a surge of studies in which other surfactants and reverse micellar systems have been considered 21,[48][49][50][51][52][53][54][55][56][57][58][59][60] . Due to time-scale challenges, many of these studies have focused on preassembled aggregates, their structure, and the structure of confined water, while the self-assembly process and the resulting aggregate size distribution have been characterized only in a very few publications, see Refs.…”

‐NO and ‐CN directed Metal Organic Ionic Framework used for Concentration Responsive Adsorption of Organic Pollutant, Bovine Serum Albumin and 2,2‐Diphenyl‐1‐Picrylhydrazyl

“…The concept of MOIF is the combination of both mentioned moieties in proper molar ration through ion exchange mechanism with one pot process using distilled water at room temperature that furnishes combine application of surfactant and complex. . MOIF are unionized soluble material in simple organic solvent; methanol, ethanol, that signifies their applications in various field ,.…”

“…[19] Ionic inorganic complex which is another moiety of MOIF has ligand metal bonding, and furnishes several applications in fields of catalyst, material and medicinal sciences. [19] The concept of MOIF is the combination of both mentioned moieties in proper molar ration through ion exchange mechanism with one pot process using distilled water at room temperature that furnishes combine application of surfactant and complex.. [21] MOIF are unionized soluble material in simple organic solvent; methanol, ethanol, that signifies their applications in various field. [19,[22][23][24] Holocene epoch of MOIF has shown their benign formation as well as their material medicinal application that attracted scientists to develop new MOIF.…”