Abstract
2D polymeric water chloride/bromide sheets comprising a unique pentagon-like dichloride/dibromidetrihydrate cluster in the solid state have been observed as [Co(bpca)(2)](+) (bpca = bis(2-pyrimidylcarbonyl)amidate anion) counterions. Both compounds were obtained by the reaction of 2,4,6-tris(2-pyrimidyl)-1,3,5-triazine (TPymT) with CoX2 (X = Cl, Br) in water. Solid-state multinuclear magnetic resonance spectroscopy and XRD provide insight into the structures.