Question

Preparation of capped gold(Au) nanoparticles in a two-phasesynthesis yields monodisperse,crystalline NPs
a) Draw a picture to describe the face-centered cubic (FCC)latticetype
b) Consider 2.0nm diameter nanoparticles in ether solution.Additionof acetone results in crystallization of superlattices dueto theinterlocking of the thiol chains. Assuming that the latticesformedare FCC, and that the thiol chains overlap by AT MOST 50% oftheirlength, estimate the distance between the center of theclosest Aunanoparticles in the superlattice where the thiolsare,respectively:
(i) HDT (hexadecanethiol) and
(ii) ODT (octadecanethiol)