title: Recent developments and future prospects of all-metal aromatic compounds.
abstract: The usefulness of aromaticity/antiaromaticity concepts to foresee structural stability patterns and salient features of the electronic structure of small inorganic and all-metal rings has been put forward. A critical revision of the advances made in the theoretical methods to assess the aromaticity/antiaromaticity of these compounds has also been made. In particular, the performance of local versus non-local indices has been reviewed. Finally, the passivation of these rings has been put forward as a key issue in order to prevent them from collapsing into larger aggregates and to provide them protection against the environment.
authors.affiliation: IZO-SGI SGiker, Euskal Herriko Unibertsitatea (UPV/EHU), P.K. 1072, 20080 Donostia, Euskadi, Spain.
authors.forename: Jose M
authors.initials: JM
authors.lastname: Mercero
authors.forename: Alexander I
authors.initials: AI
authors.lastname: Boldyrev
authors.forename: Gabriel
authors.initials: G
authors.lastname: Merino
authors.forename: Jesus M
authors.initials: JM
authors.lastname: Ugalde