Conformation and dynamics of the ligand shell of a water-soluble Au102 nanoparticle
Salorinne, K., Malola, S., Wong, O. A., Rithner, C. D., Chen, X., Ackerson, C. J., & Häkkinen, H. (2016). Conformation and dynamics of the ligand shell of a water-soluble Au102 nanoparticle. Nature Communications, 7, 10401. doi:10.1038/ncomms10401
Published inNature Communications
Chen, Xi |
© the Authors, 2016. This is an open access article published by Nature Publishing Group and licensed under a Creative Commons Attribution 4.0 International License.
Inorganic nanoparticles, stabilized by a passivating layer of organic molecules, form a versatile class of nanostructured materials with potential applications in material chemistry, nanoscale physics, nanomedicine and structural biology. While the structure of the nanoparticle core is often known to atomic precision, gaining precise structural and dynamical information on the organic layer poses a major challenge. Here we report a full assignment of 1 H and 13C NMR shifts to all ligands of a water-soluble, atomically precise, 102-atom gold nanoparticle stabilized by 44 para-mercaptobenzoic acid ligands in solution, by using a combination of multidimensional NMR methods, density functional theory calculations and molecular dynamics simulations. Molecular dynamics simulations augment the data by giving information about the ligand disorder and visualization of possible distinct ligand conformations of the most dynamic ligands. The method demonstrated here opens a way to controllable strategies for functionalization of ligated nanoparticles for applications. ...