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

Liu CS, Yan LF, Chang Z, Wang JJ - Acta Crystallogr Sect E Struct Rep Online (2007)

Bottom Line: 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 π-π stacking inter-actions, with a centroid-centroid separation of 3.704 (7) Å.

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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 π-π stacking inter-actions, with a centroid-centroid separation of 3.704 (7) Å.

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The molecular structure of complex (I). Displacement ellipsoids are drawn at the 30% probability level. Atoms labelled with the suffix A are generated by the symmetry operation (1 - x, 1 - y, 1 - z). For the sake of clarity, all H atoms have been omitted.
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Fap1: The molecular structure of complex (I). Displacement ellipsoids are drawn at the 30% probability level. Atoms labelled with the suffix A are generated by the symmetry operation (1 - x, 1 - y, 1 - z). For the sake of clarity, all H atoms have been omitted.


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

Liu CS, Yan LF, Chang Z, Wang JJ - Acta Crystallogr Sect E Struct Rep Online (2007)

The molecular structure of complex (I). Displacement ellipsoids are drawn at the 30% probability level. Atoms labelled with the suffix A are generated by the symmetry operation (1 - x, 1 - y, 1 - z). For the sake of clarity, all H atoms have been omitted.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2914908&req=5

Fap1: The molecular structure of complex (I). Displacement ellipsoids are drawn at the 30% probability level. Atoms labelled with the suffix A are generated by the symmetry operation (1 - x, 1 - y, 1 - z). For the sake of clarity, all H atoms have been omitted.
Bottom Line: 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 π-π stacking inter-actions, with a centroid-centroid separation of 3.704 (7) Å.

View Article: PubMed Central - HTML - PubMed

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 π-π stacking inter-actions, with a centroid-centroid separation of 3.704 (7) Å.

No MeSH data available.


Related in: MedlinePlus