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Compounds of thallium:
thallium (I) bromide
- Formula as commonly written: TlBr
- Hill system formula: Br1Tl1
- CAS registry number: [7789-40-4]
- Formula weight: 284.287
- Class: bromide
Synonyms
- thallium (I) bromide
- thallium bromide
Physical properties
- Colour: pale yellow
- Appearance: crystalline solid. Light sensitive.
- Melting point: 460°C
- Boiling point: 815°C
- Density: 7500 kg m-3
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Element analysis and oxidation numbers
For 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 |
|
Br |
28.11 |
-1 |
[Ar].3d10.4s2.4p6 |
|
Tl |
71.89 |
1 |
[Xe].4f14.5d10.6s2 |
Synthesis
Not available
Solid state structure
- Geometry of thallium: 8 coordinate: cubic
- Prototypical structure: CsCl

Isotope pattern
What follows is the calculated isotope pattern for the TlBr unit with the most intense ion set to 100%.
Formula: Tl1Br1
mass %
282 29.8 _______________ 283 0.0 284 100.0 __________________________________________________ 285 0.0 286 69.1 ___________________________________
References
The 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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