Chlorobis(cyclooctene)iridium dimer

Chlorobis(cyclooctene)iridium dimer
Identifiers
12246-51-4
Properties
C32H56Cl2Ir2
Molar mass 896.13
Appearance yellow solid
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Chlorobis(cyclooctene)iridium dimer is an organoiridium compound with the formula Ir2Cl2(C8H14)4, where C8H14 is cis-cyclooctene. Sometimes abbreviated Ir2Cl2(coe)4, it is a yelll, air-sensitive solid that is used as a precursor to many other organoiridium compounds and catalysts.

The compound is prepared by heating an alcohol solution of sodium hexachloroiridate with cyclooctene in ethanol.[1] The coe ligands are easily displaced by other more basic ligands, moreso than the diene ligands in the related complex cyclooctadiene iridium chloride dimer.

References

  1. Van der Ent, A.; Onderdelinden, A. L. "Chlorobis(cyclooctene)rhodium(I) and di-μ-chlorobis[bis(cryclooctene)iridium] (I) complexes" Inorganic Syntheses 1973, volume 14, pp. 92-5. doi:10.1002/9780470132456.ch18