Di-μ-hydroxido-bis[tris(4,4,4-trifluoro-1-phenylacetylacetonato-κ2 O,O′)hafnium(IV)] dimethylformamide disolvate
نویسندگان
چکیده
The binuclear molecule of the title compound, [Hf(2)(C(10)H(6)F(3)O(2))(6)(OH)(2)]·2C(3)H(7)NO, lies across an inversion centre and contains a Hf(IV) atom which is eight-coordinated and surrounded by three chelating β-diketonato tris-(4,4,4-trifluoro-1-phenyl-acetyl-acetonate (tfba(-)) ligands and two bridging OH(-) groups in a distorted square-anti-prismatic geometry. The Hf-O bond lengths vary from 2.073 (2) to 2.244 (2) Å and the O-Hf-O bite angles vary from 73.49 (9) to 75.60 (9)°. Weak O-H⋯O hydrogen-bonding inter-actions are observed between the bridging hy-droxy groups and the dimethylformamide solvent mol-ecules. The unit cell contains solvent-accessible voids of 131 Å(3), but the residual electron density in the difference Fourier map suggests no solvent mol-ecule occupies this void.
منابع مشابه
Di-μ-hydroxido-bis({2,2′-[propane-1,3-diylbis(nitrilomethylidyne)]diphenolato}iron(III)) dimethylformamide disolvate
The structure of the title compound, [Fe(2)(C(17)H(16)N(2)O(2))(2)(OH)(2)]·2C(3)H(7)N, consists of centrosymmetric dimeric units in which crystallographically equivalent Fe(III) ions are doubly bridged by hydroxide groups. Each Fe(III) center in the complex has a six-coordinated distorted cis-FeN(2)O(4) octa-hedral geometry.
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