Research Article: {4-Bromo-2-[(2-{(ethyl­sulfan­yl)[(2-oxidobenzyl­idene-κO)amino-κN]methylidene}hydrazinyl­idene-κN1)meth­yl]phenolato-κO}(butan-2-ol-κO)dioxidouranium(VI)

Date Published: March 01, 2012

Publisher: International Union of Crystallography

Author(s): Reza Takjoo, Mehdi Ahmadi, Seik Weng Ng, Edward R. T. Tiekink.


The UVI cation in the title complex, [U(C17H14BrN3O2S)O2(C4H10O)], exists within a distorted penta­gonal–bipyramidal geometry, where the oxide atoms occupy the axial positions [O—U—O = 179.8 (3)°] and the penta­gonal plane is defined by the N2O2 atoms of the tetra­dentate Schiff base ligand and the O atom of the 2-butanol mol­ecule. In the crystal, centrosymmetric aggregates are formed via pairs of hy­droxy–phenolate O—H⋯O hydrogen bonds. The azomethine C=N atoms, the ethyl­thiolyl group, the 2-butanol mol­ecule and Br atom are disordered over two positions in a 0.627 (3):0.373 (3) ratio.

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For background to uranyl Schiff base complexes, see: Şahin et al. (2010 ▶); Özdemir et al. (2011 ▶). For a related structure, see: Takjoo et al. (2012 ▶).