Chemistry Reference
In-Depth Information
Fig. 4 Schematic
illustration of ligand
exchange reactions in
organic solvents of gold
thiolato colloids
gold
particle
HS
HS
R
R
R
R
R
gold
particle
R
R
R
R
= S
conducting particles separated by an insulating monolayer sheath has also proved to
be an ideal system for studying the size confinement of conduction electrons [
2
,
3
].
The syntheses described above are flexible and convenient, but by the standards
of molecular chemistry still produce a crude product which has a range of colloidal
sizes and this limits the structural knowledge which can be derived by spectroscopic
methods and definitive structural characterisation using crystallographic tech-
niques. Therefore,
in order to produce a monodispersed sample or a more
