title: Experimental structure determination of silver cluster ions (Ag(n) +, 19 < or = n < or = 79).
abstract: The structures of mass selected silver cluster cations Ag19 +, Ag38 +, Ag55 +, Ag59 +, Ag75 +, and Ag79 + have been probed at a temperature of 100 K by trapped ion electron diffraction. The structure assignment is carried out by comparison of the experimental scattering intensity with theoretical scattering functions of calculated candidate structures obtained by density functional theory. For the cluster sizes studied the resulting experimental data are invariably best described by structures based on the icosahedral motif, while closed packed structures can be ruled out.
authors.affiliation: Institut für Nanotechnologie, Forschungszentrum Karlsruhe, Postfach 3640, 76021 Karlsruhe, Germany.
authors.forename: Martine N
authors.initials: MN
authors.lastname: Blom
authors.forename: Detlef
authors.initials: D
authors.lastname: Schooss
authors.forename: Jason
authors.initials: J
authors.lastname: Stairs
authors.forename: Manfred M
authors.initials: MM
authors.lastname: Kappes