Vanadium(II) bromide is a inorganic compound with the formula VBr2. It adopts the cadmium iodide structure, featuring octahedral V(II) centers.[1] A hexahydrate is also known. The hexahydrate undergoes partial dehydration to give the tetrahydrate. Both the hexa- and tetrahydrates are bluish in color.[2] The compound is produced by the reduction of vanadium(III) bromide with hydrogen.
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| IUPAC name
Vanadium(II) bromide
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| Other names
Vanadium dibromide
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| Identifiers | |
3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| VBr2 | |
| Molar mass | 210.750 g/mol |
| Appearance | light-brown solid |
| Density | 4.58 g/cm3 |
| Melting point | 827 °C (1,521 °F; 1,100 K) |
| Boiling point | 1,227 °C (2,241 °F; 1,500 K) |
| reacts | |
| +3230.0·10−6 cm3/mol | |
| Structure | |
| trigonal | |
| Related compounds | |
Other anions
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vanadium(II) chloride, vanadium(II) iodide |
Related compounds
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vanadium(III) bromide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Further reading
edit- Stebler, A.; Leuenberger, B.; Guedel, H. U. "Synthesis and crystal growth of A3M2X9 (A = Cs, Rb; M = Ti, V, Cr; X = Cl, Br)" Inorganic Syntheses (1989), volume 26, pages 377–85.
References
edit- ^ Klemm, Wilhelm; Grimm, Ludwig (1942). "Zur Kenntnis der Dihalogenide des Titans und Vanadins". Zeitschrift für Anorganische und Allgemeine Chemie. 249 (2): 198–208. doi:10.1002/zaac.19422490204.
- ^ Seifert, Hans-Joachim; Gerstenberg, Burkhard (1962). "Darstellung von Vanadin(II)-Verbindungen aus wäßriger Lösung". Zeitschrift für Anorganische und Allgemeine Chemie. 315 (1–2): 56–63. doi:10.1002/zaac.19623150108.