A facile approach toward multicomponent supramolecular structures: selective self-assembly via charge separation

J Am Chem Soc. 2010 Dec 1;132(47):16873-82. doi: 10.1021/ja106251f. Epub 2010 Nov 5.

Abstract

A novel approach toward the construction of multicomponent two-dimensional (2-D) and three-dimensional (3-D) metallosupramolecules is reported. Simply by mixing carboxylate and pyridyl ligands with cis-Pt(PEt(3))(2)(OTf)(2) in a proper ratio, coordination-driven self-assembly occurs, allowing for the selective generation of discrete multicomponent structures via charge separation on the metal centers. Using this method, a variety of 2-D rectangles and 3-D prisms were prepared under mild conditions. Moreover, multicomponent self-assembly can also be achieved by supramolecule-to-supramolecule transformations. The products were characterized by (31)P and (1)H multinuclear NMR spectroscopy, electrospray ionization mass spectrometry, and pulsed-field-gradient spin echo NMR techniques together with computational simulations.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Carboxylic Acids / chemistry
  • Ligands
  • Magnetic Resonance Spectroscopy
  • Models, Molecular
  • Molecular Conformation
  • Organoplatinum Compounds / chemistry*
  • Pyridines / chemistry
  • Substrate Specificity

Substances

  • Carboxylic Acids
  • Ligands
  • Organoplatinum Compounds
  • Pyridines
  • pyridine