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]
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Jobic, S.; Deniard, P.; Brec, R.; Rouxel, J.; Drew, M. G. B.; David, W. I. F. (1990). "Properties of the transition metal dichalcogenides: the case of IrS2 and IrSe2". Journal of Solid State Chemistry. 89 (2): 315–327.
Bibcode:
1990JSSCh..89..315J.
doi:
10.1016/0022-4596(90)90273-Z.
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Vaughan, David J.; Craig, James R. (1978). Mineral chemistry of metal sulfides. Cambridge Earth Science Series. Cambridge: Cambridge University Press.
ISBN0521214890.
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Chianelli, R. R.; Berhault, G.; Raybaud, P.; Kasztelan, S.; Hafner, J.; Toulhoat, H. (8 March 2002). "Periodic trends in hydrodesulfurization: in support of the Sabatier principle". Applied Catalysis A: General. 227 (1–2): 83–96.
doi:
10.1016/S0926-860X(01)00924-3.