Crystal structure of (perchlorato-κ O)(1,4,7,10-tetra-aza-cyclo-dodecane-κ4N)copper(II) perchlorate

Jessica L Gray; Deidra L Gerlach; Elizabeth T Papish

doi:10.1107/S2056989016019563

Crystal structure of (perchlorato-κ O)(1,4,7,10-tetra-aza-cyclo-dodecane-κ⁴N)copper(II) perchlorate

Acta Crystallogr E Crystallogr Commun. 2017 Jan 1;73(Pt 1):31-34. doi: 10.1107/S2056989016019563.

Authors

Jessica L Gray¹, Deidra L Gerlach¹, Elizabeth T Papish¹

Affiliation

¹ Department of Chemistry, University of Alabama, 250 Hackberry Lane, Tuscaloosa, AL 35487-0336, USA.

Abstract

The crystal structure of the title salt, [Cu(ClO₄)(C₈H₂₀N₄)]ClO₄, is reported. The Cu^II ion exhibits a square-pyramidal geometry and is coordinated by the four N atoms of the neutral 1,4,7,10-tetra-aza-cyclo-dodecane (cyclen) ligand and an O atom from one perchlorate anion, with the second perchlorate ion hydrogen-bonded to one of the amine N atoms of the cyclen ligand. Additional N-H⋯O hydrogen bonds between the amine H atoms and the coordinating and non-coordinating perchlorate groups create a three-dimensional network structure. Crystals were grown from a concentrated methanol solution at ambient temperature, resulting in no co-crystallization of solvent.

Keywords: copper(II); crystal structure; cyclen; perchlorate.