Pentanuclear Ba(II) Complex of a Macrocyclic Ligand
dataset
posted on 2005-02-21, 00:00 authored by Alberto Freiría, Rufina Bastida, M del Carmen Fernández-Fernández, Alejandro Macías, Laura Valencia, Manuel VicenteWe report here the first pentanuclear Ba(II) complex of a new tri-aza, tri-oxa macrocycle with two carboxymethyl
“arms” pending from two N atoms, H<sub>2</sub>L<sup>2</sup>. The crystal structure corresponds to the formula [Ba<sub>5</sub>(H<sub>0.375</sub>L<sup>2</sup>)<sub>4</sub>(ClO<sub>4</sub>)(CH<sub>3</sub>CH<sub>2</sub>OH)(H<sub>2</sub>O)<sub>2</sub>](ClO<sub>4</sub>)<sub>2.5</sub>·9.5H<sub>2</sub>O and reveals the presence of four molecules of the ligand surrounding five Ba(II)
ions, giving rise to an unusual structure with the metal ions inside a spherical organic cavity.
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