Crystal structure of μ-hydroxo-bis[tris(2–aminoethyl)amine]dicopper(II) perchlorate

A novel, high-symmetry dicopper complex bridged by only a single hydroxo has been synthesized and structurally characterized. The coordination geometry of copper(II) is a strict trigonal bipyramidal of C3 symmetry. The three equivalent amino nitrogen atoms of the ligand form the equatorial plane, while the tripodal nitrogen atom and the hydroxo anion occupy axial positions. The bridging Cu-(OH)-Cu angle of the single hydroxo anion is only 136.5°, which does not agree well with data found in similar compounds. The magnetic–structural relation is discussed. This revised version was published online in June 2006 with corrections to the Cover Date.