Structure of small supported gold particles

There have been numerous studies of the dependence of the shapes of small gold particles on the manner of their preparation and on the nature of 

Mossbauer spectroscopy also provides structural information.97-100 In particular it is possible to deduce from peak asymmetry the separate appearance of surface atoms as size is decreased they cause an increase in intensity of quadrupole splitting, and two quadropole components indicate two kinds of surface atoms.97 Au1 and Au111 species are also sometimes recognised,99 and sometimes not.98 

---