• Source: Cobalt(III) nitrate

Cobalt(III) nitrate is an inorganic compound with the chemical formula Co(NO3)3. It is a green, diamagnetic solid that sublimes at ambient temperature.




Structure


The compound is a molecular coordination complex. The three bidentate nitrate ligands give a distorted octahedral arrangement. The nitrate ligands are planar. With D3 symmetry, the molecule is chiral. The Co-O bond lengths are about 190 pm long. The O-Co-O angles for the chelating oxygen atoms in the same nitrate anion is about 68 degrees. The same geometry seems to persist in carbon tetrachloride solution.




Preparation and reactions


Cobalt(III) nitrate can be prepared by the reaction of dinitrogen pentoxide N2O5 with cobalt(III) fluoride CoF3. It can be purified by vacuum sublimation at 40 °C.
Cobalt(III) nitrate oxidizes water, the initial green solution rapidly turns pink, with formation of cobalt(II) ions and release of oxygen. Cobalt(III) nitrate can be intercalated in graphite, in the ratio of 1 molecule for each 12 carbon atoms.




See also


Cobalt(III) fluoride
Cobalt(III) chloride
Cobalt(III) hydroxide
Iron(III) nitrate
Iron(III) oxalate




References

Kata Kunci Pencarian:

• Media Murashige dan Skoog
• Kamus rumus kimia
• Galium
• Kalium
• Sesium
• Itrium
• Plutonium
• Serium
• Neptunium
• Cobalt(III) nitrate
• Cobalt(II) nitrate
• Cobalt nitrate
• Carbonate nitrate
• Hexaamminecobalt(III) chloride
• Tris(ethylenediamine)cobalt(III) chloride
• Cobalt compounds
• Cobalt(II) oxide
• Chloropentamminecobalt chloride
• Transition metal nitrate complex