Polonium hydride

Polonium hydride
Structural formula of hydrogen polonide
Space-filling model of the hydrogen polonide molecule
  Polonium, Po
  Hydrogen, H
Names
Preferred IUPAC name
Polonium hydride
Systematic IUPAC name
Polane
Other names
  • Hydrogen polonide
  • Polonium dihydride
  • Dihydridopolonium
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
25163, 169602
  • [PoH2]
Properties
PoH2
Molar mass 210.998 g/mol
Melting point −35.3 °C (−31.5 °F; 237.8 K)[1]
Boiling point 36.1 °C (97.0 °F; 309.2 K)[1]
Conjugate base Polonide
Structure
Bent
Related compounds
Other anions
 H2O
H2S
H2Se
H2Te
Other cations
 TlH3
PbH4
BiH3
HAt
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Polonium hydride (also known as polonium dihydride, hydrogen polonide, or polane) is a chemical compound with the formula PoH2. It is a liquid at room temperature, the second hydrogen chalcogenide with this property after water. It is very unstable chemically and tends to decompose into elemental polonium and hydrogen. It is a volatile and very labile compound, from which many polonides can be derived. Additionally, it is radioactive.[2]

  1. ^ a b Holleman, Arnold F.; Wiberg, Egon; Wiberg, Nils (1985). Lehrbuch der Anorganischen Chemie (in German) (102 ed.). Walter de Gruyter. p. 627. ISBN 978-3-11-017770-1.
  2. ^ Holleman, Arnold Frederik; Wiberg, Egon (2001), Wiberg, Nils (ed.), Inorganic Chemistry, translated by Eagleson, Mary; Brewer, William, San Diego/Berlin: Academic Press/De Gruyter, p. 594, ISBN 0-12-352651-5