Aromatic and antiaromatic spherical structures: use of long-range magnetic behavior as an aromatic indicator for bare icosahedral [Al@Al12]− and [Si12]2− clusters

Abstract

The long-range characteristics of the induced magnetic field in the bare icosahedral [Al@Al₁₂]⁻ and [Si₁₂]²⁻ clusters reveal inherent characteristics for spherical aromatic and antiaromatic systems. Here, we extend the shielding cone property to these highly symmetrical inorganic examples to achieve a suitable indicator for aromaticity as a reliable method for evaluating the aromaticity of clusters containing interstitial atoms.