The triclinic form of dipotassium cobalt(II) bis(dihydrogendiphosphate) dihydrate K2Co(H2P2O7)2·2H2O
2011
Structure of Dipotassium Cobalt(II) Bis(Dihydrogendiphosphate) Dihydrate
publication
Evidence: moderate
Author Information
Author(s): Lamhamdi Abdellatif, Essehli Rachid, El Bali Brahim, Dušek Michal, Fejfarová Karla
Primary Institution: University Mohamed I, Oujda, Morocco
Conclusion
The crystal structure of K2Co(H2P2O7)2·2H2O reveals a three-dimensional network formed by Co2+ ions, dihydrogendiphosphate anions, and water molecules.
Supporting Evidence
- The Co2+ ion is octahedrally coordinated and lies on an inversion center.
- Two bidentate dihydrogendiphosphate anions form the equatorial plane of the CoO6 octahedron.
- The structure is linked through K—O bonds and O—H⋯O hydrogen-bonding interactions.
Takeaway
Scientists studied a special crystal made of cobalt and phosphate, and they found out how its atoms are arranged in 3D space.
Methodology
The crystals were prepared by mixing solutions of CoCl2·4H2O and K4P2O7, followed by stirring and allowing to stand for two weeks.
Digital Object Identifier (DOI)
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