Piperazine-14-diium bis­(hexa­hydroxido­hepta­oxidohexa­borato-κ3OO′O′′)cobaltate(II) hexa­hydrate

摘要

In the title hydrate, (C4H12N2)[Co{B6O7(OH)6}2]·6H2O, both the dication and dianion are generated by crystallographic inversion symmetry. The Co²⁺ ion in the dianion adopts a fairly regular CoO6 octa­hedral coordination geometry arising from the two O,O′,O′′-tridentate ligands. In the crystal, the dianions and water mol­ecules are linked by O—H⋯O hydrogen bonds, generating a framework with large [100] channels, which are occupied by the organic dications. N—H⋯O and C—H⋯O hydrogen bonds consolidate the structure.