Protactinium monoxide

Protactinium monoxide

Names
IUPAC name Protactinium(II) oxide
Identifiers
CAS Number	60936-60-9^Y
3D model (JSmol)	Interactive image
InChI InChI=1S/O.Pa/q-2;+2 Key: QQSJTSKFWWYZFZ-UHFFFAOYSA-N
SMILES [O-2].[Pa+2]
Properties
Chemical formula	PaO
Molar mass	247.035 g mol^−1
Appearance	black crystals
Density	13.44 g/cm^3
Structure
Crystal structure	rocksalt[1]
Space group	Fm3m, No. 225
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Protactinium monoxide is a radioactive inorganic compound and one of the oxides of protactinium. Its chemical formula is PaO. It is a black solid that crystallizes in the rock-salt structure.^[1] Protactinium monoxide can be produced in minute quantities from the oxidation of protactinium. The protactinium monoxide cation (PaO+) is very active and can activate hydrocarbons such as alkenes.^[2]

References

1. Sellers, Philip A.; Fried, Sherman; Elson, Robert E.; Zachariasen, W. H. (1954). "The Preparation of Some Protactinium Compounds and the Metal". Journal of the American Chemical Society. 76 (23): 5935. doi:10.1021/ja01652a011.
2. Cláudia C. L. Pereira, Colin J. Marsden, Joaquim Marçalo, John K. Gibson (2011). "Actinide sulfides in the gas phase: experimental and theoretical studies of the thermochemistry of AnS (An = Ac, Th, Pa, U, Np, Pu, Am and Cm)". Physical Chemistry Chemical Physics. 13 (28): 12940–12958. Bibcode:2011PCCP...1312940P. doi:10.1039/c1cp20996e. ISSN 1463-9076. PMID 21687883. Retrieved 2021-08-24.