Cargando…
{μ-2-[(3-Amino-2,2-dimethylpropyl)iminomethyl]-6-methoxyphenolato-1:2κ(5) O (1),O (6):N,N′,O (1)}{2-[(3-amino-2,2-dimethylpropyl)iminomethyl]-6-methoxyphenolato-1κ(3) N,N′,O (1)}-μ-azido-1:2κ(2) N:N-azido-2κN-methanol-2κO-dinickel(II)
Two distinct coordination geometries are found in the binuclear title complex, [Ni(2)(C(13)H(19)N(2)O(2))(2)(N(3))(2)(CH(3)OH)], as one Schiff base ligand is pentadentate, coordinating via the anticipated oxide O, imine N and amine N atoms (as for the second, tridentate, ligand) but the oxide O is...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2012
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3414102/ https://www.ncbi.nlm.nih.gov/pubmed/22904709 http://dx.doi.org/10.1107/S1600536812029662 |
Sumario: | Two distinct coordination geometries are found in the binuclear title complex, [Ni(2)(C(13)H(19)N(2)O(2))(2)(N(3))(2)(CH(3)OH)], as one Schiff base ligand is pentadentate, coordinating via the anticipated oxide O, imine N and amine N atoms (as for the second, tridentate, ligand) but the oxide O is bridging and coordination also occurs through the methoxy O atom. The Ni(II) atoms are linked by a μ(2)-oxide atom and one end of a μ(2)-azide ligand, forming an Ni(2)ON core. The coordination geometry for the Ni(II) atom coordinated by the tridentate ligand is completed by the methoxy O atom derived from the pentadentate ligand, with the resulting N(3)O(3) donor set defining a fac octahedron. The second Ni(II) atom has its cis-octahedral N(4)O(2) coordination geometry completed by the imine N and amine N atoms of the pentadentate Schiff base ligand, a terminally coordinated azide N and a methanol O atom. The arrangement is stabilized by an intramolecular hydrogen bond between the methanol H and the oxide O atom. Linear supramolecular chains along the a axis are formed in the crystal packing whereby two amine H atoms from different amine atoms hydrogen bond to the terminal N atom of the monodentate azide ligand. |
---|