GROUP 12 ELEMENTS AND THEIR SMALL CLUSTERS: ELECTRIC DIPOLE POLARIZABILITY OF Zn, Cd AND H_g, Zn₂ DIMER AND HIGHER Zn<i>_n</i> MICROCLUSTERS AND NEUTRAL, CATIONIC AND ANIONIC ZINC OXIDE MOLECULES (ZnO, ZnO<SUP>+</SUP> AND ZnO<SUP>-</SUP>)

Abstract

This review is in general about group 12 elements and their small microclusters. In this part, after presenting an extensive literature survey of the electric dipole polarizability studies of the Zn, Cd and Hg atoms, we specifically target zinc-containing small clusters, beginning with the Zn-2 dimer, the Zn-3 trimer, higher Zn-n clusters and the neutral, cationic and anionic zinc oxide clusters: ZnO, ZnO+ and ZnO-. We tabulated experimental and theoretical results for the spectroscopic constants (dissociation energy D-e or D-0, bond length r(e), fundamental frequency w(e), anharmonicity constant w(e)x(e) and dipole moment mu(e)) of the diatomic clusters and the first and second ionization potentials IP1 and IP2 and electron affinity EA of the species reviewed.