Compounds of cobalt:cobalt (II) iodide- Formula as commonly written: CoI2
- Hill system formula: Co1I2
- CAS registry number: [15238-00-3]
- Formula weight: 312.742
- Class: iodide
Synonyms- cobalt (II) iodide
- cobalt diiodide
- cobalt diiodide (a, black)
- cobalt iodide
- cobalt iodide (a, black)
- cobalt iodide (a, black)
Physical properties- Colour: blue-black
- Appearance: crystalline solid
- Melting point: 515°C ((in vacuo) )
- Boiling point:
- Density: 5600 kg m-3
Element analysis and oxidation numbersFor each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only. | Element | % | Formal oxidation state | Formal electronic configuration |
|---|
| Co | 18.84 | 2 | [Ar].3d7 | | I | 81.16 | -1 | [Kr].4d10.5s2.5p6 |
SynthesisNot available Solid state structure- Geometry of cobalt:
- Prototypical structure:
Isotope patternWhat follows is the calculated isotope pattern for the CoI2 unit with the most intense ion set to 100%. Formula: Co1I2 mass %313 100.0 __________________________________________________
SuppliersComing soon.... ReferencesThe data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following. - R.T. Sanderson in Chemical Periodicity, Reinhold, New York, USA, 1960.
- N.N. Greenwood and A. Earnshaw in Chemistry of the Elements, 2nd edition, Butterworth, UK, 1997.
- F.A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann, in Advanced Inorganic Chemistry, John Wiley & Sons, 1999.
- A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.
- R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscience, John Wiley & Sons, 1963.
- A.R.West in Basic solid state chemistry Chemistry, John Wiley & Sons, 1999.
- A.F. Wells in Structural inorganic chemistry, 4th edition, Oxford, UK, 1975.
- J.D.H. Donnay, (ed.) in Crystal data determinative tables, ACA monograph number 5, American Crystallographic Association, USA, 1963.
- D.R. Lide, (ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
- J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.
- J.E. Macintyre (ed.) in Dictionary of inorganic compounds, volumes 1-3, Chapman & Hall, London, UK, 1992.
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