After solvent removal, re-dissolution in pentane and filtration, a clear dark green solution was obtained from which SC-XRD quality crystals grew upon storage at -30 °C overnight. A second batch of crystalline material was obtained from the concentrated mother liquor upon cooling (overall yield 75 %). X-ray analysis revealed the dimeric nature of the title compound and displayed rare and deviating coordination environments for the two Co(II) ions. A more detailed description is provided in the subsequent section. Considering the dimeric nature of 12