The discovery of carbon fullerene cages and their solids opened a new avenue to build
materials from stable cage clusters as “artificial atoms” or “superatoms” instead of atoms …

Situated between metals and non-metals in the periodic table, boron is one of the most
chemically versatile elements, forming at least sixteen bulk polymorphs composed of …

Because of their interesting structures and bonding and potentials as motifs for new
nanomaterials, size-selected boron clusters have received tremendous interest in recent …

In the last decades, experimental techniques in conjunction with theoretical analyses have
revealed the surprising structural diversity of boron clusters. Although the 2D to 3D transition …

Photoelectron spectroscopy (PES) in combination with computational chemistry has been
used systematically over the past decade to elucidate the structures and chemical bonding …

Elemental boron and its compounds exhibit unusual structures and chemical bonding owing
to the electron deficiency of boron. Joint photoelectron spectroscopy and theoretical studies …

Free-standing boron nanocages or borospherenes have been observed recently for B 40−
and B 40. There is evidence that a family of borospherenes may exist. However, the smallest …

Size-selected negatively-charged boron clusters (Bn−) have been found to be planar or
quasi-planar in a wide size range. Even though cage structures emerged as the global …

Ab initio structure prediction methods have been nowadays widely used as powerful tools
for structure searches and materials discovery. However, they are generally restricted to …

Cluster, as the aggregate of a few to thousands of atoms or molecules, bridges the
microscopic world of atoms and molecules and the macroscopic world of condensed …