title: Sandwich-like complexes based on "all-metal" (Al 4 2-) aromatic compounds.
abstract: We report a new sandwich-like structure (Al4TiAl42-) based on the recently synthesized all-metal aromatic Al42- squares. This structure has two aromatic squares (-2 charged each) trapping a titanium +2 cation. These all-metal aromatic squares have been detected by various metallic counterions, with a global charge of -1. Thus, we have also characterized a similar sandwich-like structure interacting with one and two sodium atoms with global charges of -1 and 0. The properties of these compounds strongly support the idea that they may be formed by Al42- aromatic squares.
authors.affiliation: Kimika Fakultatea, Euskal Herriko Unibertsitatea, P. K. 1072 20080 Donostia, Euskadi, Spain.
authors.forename: Jose M
authors.initials: JM
authors.lastname: Mercero
authors.forename: Jesus M
authors.initials: JM
authors.lastname: Ugalde