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Triaqua-1?O-?-cyanido-1:2?N:C-penta-cyanido-2?C-tetra-kis-(dimethyl-formamide-1?O)-1-holmium(III)-2-iron(III) monohydrate.


ABSTRACT: In the bimetallic cyanide-bridged title complex, [Fe(0.98)HoRu(0.02)(CN)(6)(C(3)H(7)NO)(4)(H(2)O)(3)]·H(2)O, the Ho(III) ion is in a slightly distorted square-anti-prismatic arrangement formed by seven O atoms from four dimethyl-formamide (DMF) mol-ecules and three water mol-ecules, and one N atom from a bridging cyanide group connected with the Fe(III) atom which is octa-hedrally coordinated by six cyanide groups. In the crystal, mol-ecules are held together through O-H?N and O-H?O hydrogen-bonding inter-actions to form a three-dimensional framework. Elemental analysis of one of the precursors and the crystal shows that there is a slight contamination of Fe by Ru. The Fe site displays, therefore, small substitutional disorder with site-occupancy factors Fe/Ru = 0.98:0.02. The two methyl groups of two dimethyl-formamide ligands are positionally disordered with site-occupancy factors of 0.44?(3):0.56?(3) and 0.44?(3):0.56?(3).

SUBMITTER: Li HF 

PROVIDER: S-EPMC3212167 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature

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Triaqua-1κO-μ-cyanido-1:2κN:C-penta-cyanido-2κC-tetra-kis-(dimethyl-formamide-1κO)-1-holmium(III)-2-iron(III) monohydrate.

Li Hong-Fang HF   Zhao Qi-Hua QH   Xie Ming-Jin MJ   Yang Fan F  

Acta crystallographica. Section E, Structure reports online 20110716 Pt 8


In the bimetallic cyanide-bridged title complex, [Fe(0.98)HoRu(0.02)(CN)(6)(C(3)H(7)NO)(4)(H(2)O)(3)]·H(2)O, the Ho(III) ion is in a slightly distorted square-anti-prismatic arrangement formed by seven O atoms from four dimethyl-formamide (DMF) mol-ecules and three water mol-ecules, and one N atom from a bridging cyanide group connected with the Fe(III) atom which is octa-hedrally coordinated by six cyanide groups. In the crystal, mol-ecules are held together through O-H⋯N and O-H⋯O hydrogen-bon  ...[more]

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