[CuSn5Sb3]24- as a dual spherical-spherical aromatic heterometallic cluster bridged via an antiaromatic Cu2Sn2 motif
Peter L Rodríguez-Kessler1, Alvaro Muñoz-Castro2
1Centro de Investigaciones en Óptica A.C., Loma del Bosque 115, Col. Lomas del Campestre, León, Guanajuato, 37150, Mexico.
Abstract:
The formation of [CuSn5Sb3]24- serves as a template for heterometallic species to evaluate the resulting aromatic properties. Our results indicated that the spherical aromatic characteristics of the [CuSn5Sb3]2- building unit remained in the overall aggregate, featuring an induced shielding cone from different orientations of the external field. Furthermore, the isostructural and isoelectronic [Sn18]4- cluster sustained similar characteristics, which supported the notion of a direct relationship between [CuSn5Sb3]24- and [Sn18]4- cluster dimers. This indicated the suitable application of the pseudo-element concept relating similar connectivity between isoelectronic atoms, which could lead to further heterometallic clusters.
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