Crystal structure of bis{μ<sub>2</sub>-2,2′-[(4,10-dimethyl-1,4,7,10-tetraazacyclododecane-1,7-diyl)bis(methylene)]bis(4-oxo-4<i>H</i>-pyran-3-olato)}dicobaltcalcium bis(perchlorate) 1.36-hydrate
Acta crystallographica. Section E, Crystallographic communications