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Direct and quantitative characterization of dynamic ligand exchange between coordination-driven self-assembled supramolecular polygons.

ABSTRACT: The direct observation of dynamic ligand exchange between Pt-N coordination-driven self-assembled supramolecular polygons (triangles and rectangles) has been achieved using stable (1)H/(2)D isotope labeling of the pyridyl donors and electrospray ionization mass spectrometry combined with NMR spectroscopy. Both the thermodynamic and kinetic aspects of such exchange processes have been established on the basis of quantitative mass spectral results. Further investigation has shown that the exchange is highly dependent on experimental conditions such as temperature, solvent, and the counteranions.

SUBMITTER: Zheng YR

PROVIDER: S-EPMC2664104 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature

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Direct and quantitative characterization of dynamic ligand exchange between coordination-driven self-assembled supramolecular polygons.

Zheng Yao-Rong YR Stang Peter J PJ

Journal of the American Chemical Society 20090301 10

The direct observation of dynamic ligand exchange between Pt-N coordination-driven self-assembled supramolecular polygons (triangles and rectangles) has been achieved using stable (1)H/(2)D isotope labeling of the pyridyl donors and electrospray ionization mass spectrometry combined with NMR spectroscopy. Both the thermodynamic and kinetic aspects of such exchange processes have been established on the basis of quantitative mass spectral results. Further investigation has shown that the exchange ...[more]

PMID: 19243144

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