Iridium disulfide

"IrS2" redirects here. For gene symbol, see IRS2.
Iridium disulfide
Identifiers
3D model (JSmol)
  • InChI=1S/Ir.2S
    Key: DUFDGYWNCWKJSM-UHFFFAOYSA-N
  • [S]=[Ir]=[S]
Properties
IrS2
Molar mass 256.349
Density 9300 kg m–3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Iridium disulfide is the binary inorganic compound with the formula IrS2. Prepared by the direct reaction of the elements, the compound adopts the pyrite crystal structure at high pressure.[1] At normal atmospheric pressures, an orthorhombic polymorph is observed.[2]. The high- and low-pressure forms both feature octahedral Ir centers, but the S–S distances are pressure dependent.[3] Although not practical, IrS2 is a highly active catalyst for hydrodesulfurization.[4]

  1. ^ Cite error: The named reference Munson-1968 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Rouxel was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Vaughan-and-Craig-1978 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Chianelli-Berhault-Raybaud-et-al-2002 was invoked but never defined (see the help page).