HYL-1,4,7-TRIAZACYCLONONANE-KAPPA-N-3)-COPPER(II)] DIPERCHLORATE

The structural characterization of the title complex, [Cu-2(OH)(C2H3O2 )(C8H19N3)(2)(H2O)](ClO4)(2), provides only the third example of a bin uclear copper complex containing a bridging water molecule. The three bridging groups (aqua, acetato and hydroxo) are all different, a rare feature for spontaneous self-assembly reactions. The resulting geometr y about the two Cu atoms is distorted octahedral, with the Cu-O(H) dis tance of 1.963 (2) Angstrom distinguished from the Cu-O(H-2) distance of 2.737 (5) Angstrom. The cation has crystallographically imposed mir ror symmetry.