In the present work we report an experimental study of lattice distort
ions in metallic nanoparticles. In our case the surface of the particl
e was passivated with surfactant molecule (dodecanothiol). We found th
at significant differences with respect to the interatomic distances o
f bulk metals can be observed. The consequences of these findings are
discussed. (C) 1998 Acta Metallurgica Inc.