Co(3)(PO(4))(2)·4H(2)O.
Acta Crystallographica. Section E, Structure Reports Online
|January 5, 2011
Summary
Hydrothermally synthesized cobalt(II) phosphate tetrahydrate crystals reveal two distinct cobalt cation coordination environments. This framework structure is stabilized by hydrogen bonds, offering insights into inorganic crystal structures.
Area of Science:
- Inorganic Chemistry
- Crystallography
- Materials Science
Background:
- Cobalt(II) phosphate tetrahydrate (Co3(PO4)2·4H2O) is a coordination compound.
- Understanding its crystal structure is crucial for potential applications.
Purpose of the Study:
- To synthesize single crystals of Co3(PO4)2·4H2O.
- To elucidate the crystal structure and coordination environments of cobalt cations.
Main Methods:
- Hydrothermal synthesis for crystal growth.
- Single crystal X-ray diffraction for structural analysis.
Main Results:
- Successfully obtained single crystals of Co3(PO4)2·4H2O.
- Identified two independent Co(2+) cations with distinct coordination geometries: tetrahedral and octahedral.
- The structure features a framework built by cobalt cations, phosphate anions, and water molecules.
- Observed hydrogen bonds (O-H⋯O) contributing to structural stability.
Conclusions:
- The synthesized Co3(PO4)2·4H2O is isotypic with hopeite (Zn3(PO4)2·4H2O).
- The diverse coordination of cobalt cations influences the overall framework architecture.
- Hydrogen bonding plays a significant role in stabilizing the crystal structure.
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