Xenon dichloride

Xenon dichloride

Identifiers
CAS Number	13780-38-6
Properties
Chemical formula	XeCl2
Molar mass	202.199 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Xenon dichloride (XeCl₂) is a xenon compound and the only known stable chloride of xenon. The compound can be prepared by using microwave discharges towards the mixture of xenon and chlorine, and it can be isolated from a condensate trap. One experiment tried to use xenon, chlorine and boron trichloride to produce XeCl₂·BCl₃, but only generated xenon dichloride.^[1]

However, it is still doubtful whether xenon dichloride is a true compound or a supermolecule composed of a xenon atom and a chlorine molecule connected by a secondary bond.^[2]

Xenon monochloride is used in excimer lasers. Xe₂Cl also exists in the excimer state.^[3]

References

1. 张青莲 (November 1991). 《无机化学丛书》第一卷：稀有气体、氢、碱金属. Beijing: Science Press. pp. P72. ISBN 7-03-002238-6.
2. Proserpio, Davide M.; Hoffmann, Roald; Janda, Kenneth C. (1991). "The xenon-chlorine conundrum: van der Waals complex or linear molecule?". Journal of the American Chemical Society 113 (19): 7184. doi:10.1021/ja00019a014.
3. Lorents, D. C.; D. L. Huestis; M. V. McCusker; H. H. Nakano; R. M. Hill (1978). "Optical emissions of triatomic rare gas halides". The Journal of Chemical Physics 68 (10): 4657. doi:10.1063/1.435574. ISSN 0021-9606.