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


ABSTRACT: 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.

SUBMITTER: Hao L 

PROVIDER: S-EPMC2983704 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature

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

Hao Lujiang L   Liu Tongjun T   Chen Jiangkui J   Zhang Xiaofei X  

Acta crystallographica. Section E, Structure reports online 20100213 Pt 3


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-  ...[more]

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