Tetrakis(μ-anthracene-9-carboxylato)bis[(anthracene-9-carboxylato)(2,2′-bipyridyl)lanthanum(III)]

oleh: Chun-Sen Liu, Li-Fen Yan, Jun-Jie Wang, Ze Chang

Format: Article
Diterbitkan: International Union of Crystallography 2008-01-01

Deskripsi

The title complex, [La2(C15H9O2)6(C10H8N2)2], has a centrosymmetric binuclear cage structure in which two LaIII atoms are both nine-coordinated and bridged by four anthracene-9-carboxylate ligands, with an La...La separation of 4.0880 (4) Å. The remaining coordination sites are occupied by two N atoms of a 2,2′-bipyridine (bipy) and two O atoms of an anthracene-9-carboxylate ligand. The six anthracene-9-carboxylate groups coordinate each LaIII atom in three different ways. Adjacent discrete dinuclear units are arranged into a one-dimensional chain along the [111] direction by intermolecular π–π stacking interactions, with a centroid–centroid separation of 3.704 (7) Å.