Cargando…
Bis(μ-azido-κ(2) N (1):N (1))bis{(acetato-κ(2) O,O′)[2,4,6-tris(2-pyridyl)-1,3,5-triazine-κ(3) N (2),N (1),N (6)]lead(II)}
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 ace...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2011
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3201302/ https://www.ncbi.nlm.nih.gov/pubmed/22058709 http://dx.doi.org/10.1107/S1600536811038116 |
Sumario: | 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 π–π interactions [ring centroid distance between pyridyl rings = 3.581 (2) Å] leads to supramolecular chains along the a-axis direction. |
---|