Chemistry:Iridium disulfide
From HandWiki
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3D model (JSmol)
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PubChem CID
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| 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). | |
| Infobox references | |
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]
References
- ↑ "The synthesis of iridium disulfide and nickel diarsenide having the pyrite structure". Inorganic Chemistry 7 (2): 389–390. February 1968. doi:10.1021/ic50060a047. https://htracyhall.org/ocr/HTH-Archives/Cabinet%208/Drawer%203%20(MATI%20-%20MOZ)/(Munson,%20R.A.)%20(Muntoni,%20C.)%20(Murase,%20K.)%20(linked)/(Munson,%20R.A.)%20(Muntoni,%20C.)%20(Murase,%20K.)-237_OCR.pdf.
- ↑ "Properties of the transition metal dichalcogenides: the case of IrS2 and IrSe2". Journal of Solid State Chemistry 89 (2): 315–327. 1990. doi:10.1016/0022-4596(90)90273-Z. Bibcode: 1990JSSCh..89..315J.
- ↑ Mineral chemistry of metal sulfides. Cambridge Earth Science Series. Cambridge: Cambridge University Press. 1978. ISBN 0521214890.
- ↑ "Periodic trends in hydrodesulfurization: in support of the Sabatier principle". Applied Catalysis A: General 227 (1–2): 83–96. 8 March 2002. doi:10.1016/S0926-860X(01)00924-3.
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