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Tetra-kis(?-anthracene-9-carboxyl-ato)bis-[(anthracene-9-carboxyl-ato)(2,2'-bipyrid-yl)lanthanum(III)].

ABSTRACT: The title complex, [La(2)(C(15)H(9)O(2))(6)(C(10)H(8)N(2))(2)], has a centrosymmetric binuclear cage structure in which two La(III )atoms are both nine-coordinated and bridged by four anthracene-9-carboxyl-ate 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-carboxyl-ate ligand. The six anthracene-9-carboxyl-ate groups coordinate each La(III )atom in three different ways. Adjacent discrete dinuclear units are arranged into a one-dimensional chain along the [111] direction by inter-molecular ?-? stacking inter-actions, with a centroid-centroid separation of 3.704?(7)?Å.

SUBMITTER: Liu CS

PROVIDER: S-EPMC2914908 | biostudies-other | 2007 Dec

REPOSITORIES: biostudies-other

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Tetra-kis(μ-anthracene-9-carboxyl-ato)bis-[(anthracene-9-carboxyl-ato)(2,2'-bipyrid-yl)lanthanum(III)].

Liu Chun-Sen CS Yan Li-Fen LF Chang Ze Z Wang Jun-Jie JJ

Acta crystallographica. Section E, Structure reports online 20071206 Pt 1

The title complex, [La(2)(C(15)H(9)O(2))(6)(C(10)H(8)N(2))(2)], has a centrosymmetric binuclear cage structure in which two La(III )atoms are both nine-coordinated and bridged by four anthracene-9-carboxyl-ate 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-carboxyl-ate ligand. The six anthracene-9-carboxyl-ate groups coordinate each La(III )atom in three different ways. ...[more]

PMID: 21200503

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