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Cyclooctadiene iridium methoxide dimer

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Cyclooctadiene iridium methoxide dimer
Names
Other names bisdi-μ-methoxydiiridium
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.156.683 Edit this at Wikidata
PubChem CID
InChI
  • InChI=1S/2C8H12.2CH3O.4CH3.2Ir/c2*1-2-4-6-8-7-5-3-1;2*1-2;;;;;;/h2*1-2,7-8H,3-6H2;2*1H3;4*1H3;;/b2*2-1-,8-7-;;;;;;;;Key: KIQXVKYWEDSHED-SXGOCSEPSA-N
SMILES
  • CO1(O(1(C)C)C)(C)C.C1/C=C\CC/C=C\C1.C1/C=C\CC/C=C\C1
Properties
Chemical formula C18H30Ir2O2
Molar mass 662.870 g·mol
Appearance yellow solid
Density 2.552 g/cm
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

Cyclooctadiene iridium methoxide dimer is an organoiridium compound with the formula Ir2(OCH3)2(C8H12)2, where C8H12 is the diene 1,5-cyclooctadiene. It is a yellow solid that is soluble in organic solvents. The complex is used as a precursor to other iridium complexes, some of which are used in homogeneous catalysis.

The compound is prepared by treating cyclooctadiene iridium chloride dimer with sodium methoxide. In terms of its molecular structure, the iridium centers are square planar as is typical for a d complex. The Ir2O2 core is folded.

References

  1. Li, Hongbo; Colacot, Thomas J. (2010). "Di-μ-methoxobis(1,5-cyclooctadiene)diiridium(I)". Encyclopedia of Reagents for Organic Synthesis. doi:10.1002/047084289X.rn01167. ISBN 978-0471936237..
  2. Uson, R.; Oro, L. A.; Cabeza, J. A. (1985). "Dinuclear Methoxy, Cyclooctadiene, and Barrelene Complexes of Rhodium(I) and Iridium(I)". Inorganic Syntheses. Vol. 23. pp. 126–130. doi:10.1002/9780470132548.ch25. ISBN 9780470132548.
  3. Carlton, Laurence; Nyoni, Michelle S.; Fernandes, Manuel A. (2016). "Triazenide complexes of iridium. Evidence for [Ir(η-NPh)(HNPh)(1,5-cod)], Structures of [Ir2(μ-OMe)2(1,5-cod)2], [Ir2(μ-N3Ph2)2(1,5-cod)2], [Ir(η-N3Ph2)(H)(SiPh3)(1,5-cod)], [Ir(η-N3Ph2)(H)(SnPh3)(1,5-cod)] and [Ir(η-N3Ph2)(SC6F5)2(1,5-cod)]". Polyhedron. 119: 194–201. doi:10.1016/j.poly.2016.03.022.
Iridium compounds
Iridium(0)
Iridium(I)
Organoiridium(I)
Iridium(II)
Iridium(III)
Organoiridium(III)
Iridium(IV)
Iridium(V)
Iridium(VI)
Iridium(VII)
Iridium(VIII/IX)
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