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Bis{tris-[3-(2-pyrid-yl)-1H-pyrazole]cadmium(II)} dodeca-molybdo(V,VI)phosphate hexa-hydrate.

ABSTRACT: The hydro-thermally prepared title compound, [Cd(C(8)H(7)N(3))(3)](2)[PMo(12)O(40)]·6H(2)O, is isotypic with its Mn(II) analogue [Hao et al. (2010 ?). Acta Cryst. E66, m231-m232]. The Cd(II) cation is in a distorted octa-hedral environment, coordinated by six N atoms from three chelating 3-(2-pyrid-yl)-1H-pyrazole ligands. In the reduced heteropolyanion, two O atoms of the central PO(4) group ( symmetry) are equally disordered about an inversion centre. N-H?O and O-H?O hydrogen bonds contribute to the crystal packing. Compared with the Mn(II) analogue, the Cd-N bond lengths are longer at 2.316?(7)-2.334?(6)?Å, versus 2.224?(6)-2.283?(5)?Å for Mn-N, whereas all other bond lengths and angles and the hydrogen-bonding motifs are very similar in the two structures.

SUBMITTER: Hao L

PROVIDER: S-EPMC2983543 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature

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Bis{tris-[3-(2-pyrid-yl)-1H-pyrazole]cadmium(II)} dodeca-molybdo(V,VI)phosphate hexa-hydrate.

Hao Lujiang L Wang Yan Y Zhang Xiaofei X Chen Jiangkui J Zhang Xiutang X

Acta crystallographica. Section E, Structure reports online 20100206 Pt 3

The hydro-thermally prepared title compound, [Cd(C(8)H(7)N(3))(3)](2)[PMo(12)O(40)]·6H(2)O, is isotypic with its Mn(II) analogue [Hao et al. (2010 ▶). Acta Cryst. E66, m231-m232]. The Cd(II) cation is in a distorted octa-hedral environment, coordinated by six N atoms from three chelating 3-(2-pyrid-yl)-1H-pyrazole ligands. In the reduced heteropolyanion, two O atoms of the central PO(4) group ( symmetry) are equally disordered about an inversion centre. N-H⋯O and O-H⋯O hydrogen bonds contribute ...[more]

PMID: 21580219

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Bis{tris-[3-(2-pyrid-yl)-1H-pyrazole]iron(II)} dodeca-molybdo(V,VI)phosphate hexa-hydrate.

Project description:Crystals of the title compound, [Fe(C(8)H(7)N(3))(3)](2)[PMo(12)O(40)]·6H(2)O, prepared under hydro-thermal conditions, are isotypic with the Mn(2+) and Cd(2+) analogues. The Fe(2+) cation is in a distorted octa-hedral coordination by six N atoms from three chelating 3-(2-pyrid-yl)-1H-pyrazole ligands. The heteropoly-anion [PMo(12)O(40)](4-) is a one-electron reduced species in which two O atoms of the central PO(4) group ( symmetry) are equally disordered about an inversion centre. N-H?O and O-H?O hydrogen bonds make a contribution to the crystal packing. The Fe-N bond lengths [2.085?(19)-2.15?(2)?Å] are somewhat shorter than the Mn-N and Cd-N bond lengths [2.224?(6)-2.283?(5) and 2.316?(7)-2.334?(6)?Å, respectively]. All other bond lengths and angles and the hydrogen-bonding motifs are very similar in the isotypic structures.

| S-EPMC2983704 | biostudies-literature

Bis{tris-[3-(2-pyrid-yl)-1H-pyrazole]nickel(II)} dodeca-molybdo(V,VI)phosphate hexa-hydrate.

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Project description:The asymmetric unit of the title compound, [Mn(C(8)H(7)N(3))(3)](2)[PMo(12)O(40)]·6H(2)O, consists of a complex [Mn(C(8)H(7)N(3))(3)](2+) cation, half of a mixed-valent Mo(V,VI) ?-Keggin-type [PMo(12)O(40)](4-) heteropolyanion, and three uncoordinated water mol-ecules. The Mn(2+) cation is surrounded by six N atoms from three chelating 3-(2-pyrid-yl)-1H-pyrazole ligands in a distorted octa-hedral coordination. In the heteropolyanion, two O atoms of the central PO(4) group ( symmetry) are equally disordered about an inversion centre. N-H?O and O-H?O hydrogen bonding between the cations, anions and the uncoordinated water mol-ecules leads to a consolidation of the structure.

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| S-EPMC2979929 | biostudies-literature

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| S-EPMC2979799 | biostudies-other

Bis{tris-[3-(2-pyrid-yl)-1H-pyrazole]nickel(II)} dodeca-molybdosilicate tetra-hydrate.

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| S-EPMC3120305 | biostudies-literature

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| S-EPMC2979923 | biostudies-literature

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| S-EPMC3393183 | biostudies-literature

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