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<b>Synthesis and X-ray structure of the dysprosium(III) complex derived from the ligand 5-chloro-1,3-diformyl-2-hydroxybenzene-bis-(2-hydroxybenzoylhydrazone) [Dy<sub>2</sub>(C<sub>22</sub>H<sub>16</sub>ClN<sub>4</sub>O<sub>5</sub>)<sub>3</sub>]</b>

Mayoro Diop
Farba B. Tamboura
Mohamed Gaye
Abdou S. Sall
Aliou H. Barry
Tahar Jouini


The title compound [Dy2(C22H16ClN4O5)3](SCN)3(H2O)(CH3OH) has been synthesized and its crystal structure determined by single X-ray diffraction at room temperature. The two nine coordinated Dy(III) are bound to three macromolecules ligand through the phenolic oxygens of the p-chlorophenol moieties, the nitrogen atoms and the carbonyl functions of the hydrazonic moieties. The phenolic oxygen atoms of the 2-hydroxybenzoyl groups are not bonded to the metal ions. In the bases of the coordination polyhedra the six Dy-N bonds are in the range 2.563(13)-2.656(13) Å and the twelve Dy-O bonds are in the range 2.281(10)-2.406(10) Å.


KEY WORDS: Dysprosium(III) complex, 5-Chloro-1,3-diformyl-2-hydroxybenzene-bis-(2-hydroxybenzoylhydrazone), Crystal structure



Bull. Chem. Soc. Ethiop. 2003, 17(2), 167-172.