Self-Assembly of Organic-Inorganic Hybrid Amphiphilic Surfactants with Large Polyoxometalates as Polar Head Groups

Zhang, J., Song, Y.-F., Cronin, L. and Liu, T. (2008) Self-Assembly of Organic-Inorganic Hybrid Amphiphilic Surfactants with Large Polyoxometalates as Polar Head Groups. Journal of the American Chemical Society, 130(44), p. 14408. (doi:10.1021/ja805644a)

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Publisher's URL: http://dx.doi.org/10.1021/ja805644a

Abstract

Mn-Anderson-C-6 and Mn-Anderson-C-16. A type of inorganic-organic hybrid moleculrs containing a large anionic polyoxometalate (POM) cluster and two C-6 and C-16 alkyl chains, respectively, demonstrate amphiphillic surfactant behaviour in the mixed solvents of acetonitrile and water. The amphiphilic hybrid molecules can slowly assemble into membrane-like vesicles by using the POM clusters as polar head groups, as studied by laser lignt scattering and TEM techniques. The hollow vesicles have a typical bilayer structure with the hydrophilic Mn-Anderson cluster facing outside and long hydrophobic alkyl chains staying inside to form the solvent-phobic layer. Due to the rigidity of the POM polar heads, the two alkyl tails have to bend significantly for the vesicle formation, which makes the vesicle formation more difficult compared to some conventional surfactants. This is the first example of using hydrophillic POM macroions as polar head groups for a surfactant system.

Item Type:Articles
Keywords:Acetonitrile CHAIN CLUSTER CLUSTERS HYBRID IONS MOLECULE MOLECULES POLYOXOMETALATE polyoxometalates SCATTERING SELF-ASSEMBLIES self-assembly SOLVENT SOLVENTS Structure SURFACTANTS SYSTEM vesicles WATER
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cronin, Professor Leroy and Song, Dr Yufei
Authors: Zhang, J., Song, Y.-F., Cronin, L., and Liu, T.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Journal of the American Chemical Society
Publisher:American Chemical Society
ISSN:0002-7863
ISSN (Online):1520-5126
Published Online:10 August 2008

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
377311Trapping fundamentally new types of polyoxometalate cluster using a shrink wrapping approachLeroy CroninEngineering & Physical Sciences Research Council (EPSRC)GR/T17205/01Chemistry