Multicomponent supramolecular systems: self-organization in coordination-driven self-assembly

Chemistry. 2009 Jul 20;15(29):7203-14. doi: 10.1002/chem.200900230.

Abstract

The self-organization of multicomponent supramolecular systems involving a variety of two-dimensional (2 D) polygons and three-dimensional (3 D) cages is presented. Nine self-organizing systems, SS(1)-SS(9), have been studied. Each involves the simultaneous mixing of organoplatinum acceptors and pyridyl donors of varying geometry and their selective self-assembly into three to four specific 2 D (rectangular, triangular, and rhomboid) and/or 3 D (triangular prism and distorted and nondistorted trigonal bipyramidal) supramolecules. The formation of these discrete structures is characterized using NMR spectroscopy and electrospray ionization mass spectrometry (ESI-MS). In all cases, the self-organization process is directed by: 1) the geometric information encoded within the molecular subunits and 2) a thermodynamically driven dynamic self-correction process. The result is the selective self-assembly of multiple discrete products from a randomly formed complex. The influence of key experimental variables--temperature and solvent--on the self-correction process and the fidelity of the resulting self-organization systems is also described.

Publication types

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

MeSH terms

  • Magnetic Resonance Spectroscopy
  • Mass Spectrometry
  • Models, Molecular
  • Molecular Structure
  • Organoplatinum Compounds / chemistry*
  • Stereoisomerism
  • Thermodynamics

Substances

  • Organoplatinum Compounds