Protactinium(V) oxide

Protactinium(V) oxide

Names
IUPAC name Protactinium(V) oxide
Identifiers
CAS Number	12036-75-8
Jmol interactive 3D	Image Image
InChI InChI=1S/5O.2Pa Key: LDJMPPCAULZCAH-UHFFFAOYSA-N InChI=1S/10O.4Pa Key: YHCILLCTPZINHI-UHFFFAOYSA-N
SMILES O=[Pa](=O)O[Pa](=O)=O O=[Pa]12O[Pa]3(=O)O[Pa](=O)(O1)O[Pa](=O)(O2)O3
Properties
Chemical formula	Pa 2O 5
Molar mass	542.0688 g mol^−1
Appearance	White, opaque crystals
Structure
Crystal structure	orthorhombic
Space group	Fm-3m, 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(V) oxide is a chemical compound with the formula Pa₂O₅. When it is reduced with hydrogen, it forms PaO₂.^[1]

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: 5935. doi:10.1021/ja01652a011.