Ligand symmetry-equivalence on thiolate protected gold nanoclusters determined by NMR spectroscopy.

  title={Ligand symmetry-equivalence on thiolate protected gold nanoclusters determined by NMR spectroscopy.},
  author={Odalia Wong and Christine L. Heinecke and Ashli R Simone and Robert L Whetten and Christopher J Ackerson},
  volume={4 14},
The Au(144)(SR)(60) nanocluster has been a subject of structural conjecture since its initial description over a decade ago as a 29 kDa compound, yet a decisive empirical structure is elusive. Herein we show that (1)H NMR spectroscopy can provide a detailed view of ligand-layer equivalence for thiolate protected gold nanoclusters. We show that Au(25)(SR)(18), Au(38)(SR)(24) and Au(102)(SR)(44) nanoclusters have (1)H NMR spectra where the number of distinct chemical environments for the R-groups… CONTINUE READING

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