"Bottom-up" meets "top-down" assembly in nanoscale polyoxometalate clusters: self-assembly of [P4W52O178](24-) and disassembly to [P3W39O134](19-)

J Am Chem Soc. 2008 Nov 12;130(45):14946-7. doi: 10.1021/ja806596j. Epub 2008 Oct 21.

Abstract

The pH-controlled assembly/disassembly of a nanoscale {P4W52O178}24- cluster at pH 2 to a {P4W44O152}20- cluster at pH 3-5 via a {P3W39O134}19- cluster species at pH 2-3 to finally give {P2W19O69(OH2)}14- at pH 6 is reported. This process can be traced in the solid state crystallographically and in solution using dynamic light scattering studies.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anions / chemistry
  • Crystallography, X-Ray
  • Hydrogen-Ion Concentration
  • Models, Molecular
  • Nanostructures / chemistry*
  • Phosphorus Compounds / chemical synthesis
  • Phosphorus Compounds / chemistry*
  • Phosphotungstic Acid / chemical synthesis
  • Phosphotungstic Acid / chemistry
  • Tungsten Compounds / chemical synthesis
  • Tungsten Compounds / chemistry*

Substances

  • Anions
  • Phosphorus Compounds
  • Tungsten Compounds
  • polyoxometalate I
  • Phosphotungstic Acid
  • tungstate