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Bis(?-azido-?N:N)bis-{(acetato-?O,O')[2,4,6-tris-(2-pyrid-yl)-1,3,5-triazine-?N,N,N]lead(II)}.

ABSTRACT: The complete dinuclear title complex, [Pb(2)(C(2)H(3)O(2))(2)(N(3))(2)(C(18)H(12)N(6))(2)], is generated by the application of a crystallographic centre of inversion. The Pb(II) atom is coordinated by three N atoms of the tridentate ligand, two O atoms derived from an asymmetrically coordinating acetate ligand, and two azido-N atoms derived from two asymmetrically bridging azido ligands. The metal coordination geometry can be described as a square anti-prism with one position occupied by an unseen lone pair of electrons. In the ligand, the two coordinating pyridine rings are almost co-planar with the central pyrazine ring [dihedral angles = 0.47?(17) and 0.83?(18)°], but the terminal ring is twisted [dihedral angle = 19.76?(18)°]. In the crystal, the presence of ?-? inter-actions [ring centroid distance between pyridyl rings = 3.581?(2)?Å] leads to supra-molecular chains along the a-axis direction.

SUBMITTER: Dayani M

PROVIDER: S-EPMC3201302 | biostudies-literature | 2011 Oct

REPOSITORIES: biostudies-literature

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Bis(μ-azido-κN:N)bis-{(acetato-κO,O')[2,4,6-tris-(2-pyrid-yl)-1,3,5-triazine-κN,N,N]lead(II)}.

Dayani Milad M Ghaemi Akbar A Ng Seik Weng SW Tiekink Edward R T ER

Acta crystallographica. Section E, Structure reports online 20110930 Pt 10

The complete dinuclear title complex, [Pb(2)(C(2)H(3)O(2))(2)(N(3))(2)(C(18)H(12)N(6))(2)], is generated by the application of a crystallographic centre of inversion. The Pb(II) atom is coordinated by three N atoms of the tridentate ligand, two O atoms derived from an asymmetrically coordinating acetate ligand, and two azido-N atoms derived from two asymmetrically bridging azido ligands. The metal coordination geometry can be described as a square anti-prism with one position occupied by an unse ...[more]

PMID: 22058709

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