Cargando…
Bis{tris[3-(2-pyridyl)-1H-pyrazole]iron(II)} tetradecamolybdo(V,VI)silicate
The asymmetric unit of the title compound, [Fe(C(8)H(7)N(3))(3)](2)[SiMo(14)O(44)], consists of a complex [Fe(C(8)H(7)N(3))(3)](2+) cation and half of a derivative of an α-Keggin-type anion, [SiMo(14)O(44)](4−). In the mixed-valent Mo(V/VI) anion, the α-Keggin type core is capped on two oppositely d...
Autores principales: | , , , , |
---|---|
Formato: | Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2010
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2979929/ https://www.ncbi.nlm.nih.gov/pubmed/21579657 http://dx.doi.org/10.1107/S1600536810002412 |
Sumario: | The asymmetric unit of the title compound, [Fe(C(8)H(7)N(3))(3)](2)[SiMo(14)O(44)], consists of a complex [Fe(C(8)H(7)N(3))(3)](2+) cation and half of a derivative of an α-Keggin-type anion, [SiMo(14)O(44)](4−). In the mixed-valent Mo(V/VI) anion, the α-Keggin type core is capped on two oppositely disposed tetragonal faces by additional (MoO(2)) units. The [SiMo(14)O(44)](4−) anion shows disorder. Two O atoms of the central SiO(4) group ([Image: see text] symmetry) are equally disordered about an inversion centre. Moreover, two of the outer bridging O atoms and the O atoms of the capping (MoO(2)) unit are likewise disordered. The Fe(2+) cation is surrounded in a slightly distorted octahedral coordination by six N atoms from three 3-(2-pyridyl)-1H-pyrazole ligands. N—H⋯O hydrogen bonding between the cations and anions leads to a consolidation of the structure. |
---|