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Bis(2,4,6-triamino-1,3,5-triazin-1-ium) hexaaquacobalt(II) bis[bis(pyridine-2,6-dicarboxylato)cobaltate(II)] tetrahydrate
The title compound, (C(3)H(7)N(6))(2)[Co(H(2)O)(6)][Co(C(7)H(3)NO(4))(2)](2)·4H(2)O, or (tataH)(2)[Co(H(2)O)(6)][Co(pydc)(2)](2)·4H(2)O (where tata is 2,4,6-triamino-1,3,5-triazine and pydc is pyridine-2,6-dicarboxylic acid), was obtained by reaction of Co(NO(3))(2)·6H(2)O with the proton-transfer c...
Autores principales: | , , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2007
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2915120/ https://www.ncbi.nlm.nih.gov/pubmed/21200535 http://dx.doi.org/10.1107/S1600536807066032 |
Sumario: | The title compound, (C(3)H(7)N(6))(2)[Co(H(2)O)(6)][Co(C(7)H(3)NO(4))(2)](2)·4H(2)O, or (tataH)(2)[Co(H(2)O)(6)][Co(pydc)(2)](2)·4H(2)O (where tata is 2,4,6-triamino-1,3,5-triazine and pydc is pyridine-2,6-dicarboxylic acid), was obtained by reaction of Co(NO(3))(2)·6H(2)O with the proton-transfer compound (tataH)(2)(pydc) in aqueous solution. The [Co(pydc)(2)](2−) anion is a six-coordinate Co(II) complex with a distorted octahedral coordination geometry. The structure also contains hexaaquacobalt(II) cations (site symmetry [Image: see text]), (tataH)(+) cations and uncoordinated water molecules. The two(pydc)(2−) ligands in each [Co(pydc)(2)](2−) anion are almost perpendicular to each other [dihedral angle between their mean planes = 82.3 (1)°]. There is extensive O—H⋯O, N—H⋯N, O—H⋯N and C—H⋯O hydrogen bonding in the structure, as well as π–π stacking between (pydc)(2−) ligands with an interplanar distance of 3.484 (15) Å. |
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