Evidence of hollow golden cages

Abstract

The fullerenes are the first ''free-standing'' elemental hollow cages identified by spectroscopy experiments and synthesized in the bulk. Here, we report experimental and theoretical evidence of hollow cages consisting of pure metal atoms, Au n ؊ (n ‫؍‬ 16 -18); to our knowledge, free-standing metal hollow cages have not been previously detected in the laboratory. These hollow golden cages (''bucky gold'') have an average diameter >5.5 Å, which can easily accommodate one guest atom inside.anion photoelectron spectroscopy ͉ density functional calculation ͉ hollow gold cages ͉ lowest-energy clusters

Application of a parallel genetic algorithm to the global optimization of medium-sized Au–Pd sub-nanometre clusters

“…The lowest energy structure we have obtained for Au 17 is similar to what has been reported for neutral [64] and anionic [65] Au 17 , showing a pseudo-spherical hollow cage structure with C 2v symmetry. The nearest competitive isomer to the GM is also another hollow-cage structure, with a relative energy of 0.08 eV and C 1 symmetry.…”

“…Having a flattened cage structure and C 2v symmetry, Au 16 is similar to the case of Au 14 , as previously reported [64]. In contrast, anionic Au 16 has been reported to adopt a hollow cage structure [65].…”

Fluxionality of gold nanoparticles investigated by Born-Oppenheimer molecular dynamics

“…Some technical details of the computational times involved in the dynamic simulation have been added in the section dedicated to the "computational methods" section, in order to give an idea of their feasibility. gold for cage-like structures has been noted by several researchers [41,[70][71][72].…”

“…11) has been described as a highly stable structure and has been also observed experimentally [70,72,92,93]. We have run a dynamic simulation on this structure in the same time-frame as for the previous systems out changing the relative positions of its constituent atoms.…”

Self-Consistent Charge Equilibration Method and Its Application to Au13Nan(n= 1,10) Clusters

“…The CLI is of special interest here because cage structures have been proposed for gold clusters ("golden cages") in a size range from 15 to 20 atoms roughly. 35 We will now briefly explain the OMI, LMI, and CLI. Suppose that we have two kinds of elements A and B in a cluster.…”