Chiral elaboration of gold nanoparticle surfaces by bis(binaphthyl) groups

摘要

The synthesis of a family of bis(binaphthyl)-based compounds for the chiral modification of gold nanoparticle surfaces is described. In these systems, two (S)-1,1'-bi-2-naphthol groups are linked to one another by a single diethanolamine-derived bridge, the nitrogen atom of which serves as an anchor for the attachment of an alkanethiol tether of 6, 10, or 12 methylene units in length. The terminal thiol group allows the production of surface-elaborated gold nanoparticles of 2.1 +/- 0.6 nm diameter by a 'direct synthesis' method.