Dibromine monoxide

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Dibromine monoxide
IUPAC name Oxygen dibromide
Other names Hypobromous anhydride
Identifiers
InChI InChI=1/Br2O/c1-3-2
InChIKey HJCMMOODWZOXML-UHFFFAOYAD
Standard InChI InChI=1S/Br2O/c1-3-2
Standard InChIKey HJCMMOODWZOXML-UHFFFAOYSA-N
CAS number [21308-80-5]
ChemSpider 10686917
Properties[1][2]
Chemical formula Br2O
Molar mass 175.81 g mol−1
Appearance dark brown solid
Melting point

−17.5 °C (255.7 K) decomp.

Thermochemistry[3]
Std enthalpy of formation ΔfHo298 +107.1(35) kJ mol−1
Related compounds
Other cations Difluorine monoxide
Dichlorine monoxide
Other oxides of bromine Bromine dioxide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Dibromine monoxide, Br2O, is a binary compound of bromine and oxygen. It is prepared by the reaction of bromine with mercury(II) oxide[4][5] or by the low temperature decomposition of bromine dioxide in vacuo.[6][7]

Notes and references

Notes

References

  1. Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; pp 996–97. ISBN 0-08-022057-6.
  2. Cotton, F. Albert; Wilkinson, Geoffrey Advanced Inorganic Chemistry, 5th ed.; Wiley-Interscience: New York, 1988; p 562. ISBN 0-471-84997-9.
  3. Thorn, R. Peyton, Jr.; Monks, Paul S.; Stief, Louis J.; Kuo, Szu-Cherng; Zhang, Zhengyu; Klemm, R. Bruce Photoionization Efficiency Spectrum, Ionization Energy, and Heat of Formation of Br2O. J. Phys. Chem. 1996, 100 (30), 12199–203. DOI: 10.1021/jp960405z.
  4. Zintl, E.; Rienäcker, G. Über die Existenz eines flüchtigen Bromoxyds. Ber. Dtsch. Chem. Ges. B 1930, 63 (5), 1098–1104. DOI: 10.1002/cber.19300630516.
  5. Brenschede, W.; Schumacher, H.-J. Über die Darstellung und einige Eigenschaften eines Bromoxyds von der Formel Br2O. Z. Anorg. Allg. Chem. 1936, 226 (4), 370–84. DOI: 10.1002/zaac.19362260409.
  6. Schwarz, R.; Wiele, H. Über das Bromoxyd Br2O. Naturwissenschaften 1938, 26 (45), 742. DOI: 10.1007/BF01774152.
  7. Schwarz, Robert; Wiele, Heinz Zur Kenntnis der Bromoxyde (II. Mitteilung). J. Prakt. Chem. 1938, 152 (3–6), 157–76. DOI: 10.1002/prac.19391520306.

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