Английская Википедия:Iridium acetylacetonate

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Шаблон:Chembox

Iridium acetylacetonate is the iridium coordination complex with the formula Ir(O2C5H7)3, which is sometimes known as Ir(acac)3. The molecule has D3-symmetry.[1] It is a yellow-orange solid that is soluble in organic solvents.

Preparation and isomerism

It is prepared from IrCl3(H2O)3 and acetylacetone.[2] The complex has been resolved into individual enantiomers by separation of its adduct with dibenzoyltartaric acid.[3]

A second linkage isomers is also known. In the second isomer one of the acetylacetonate ligands is bonded to Ir through carbon.[4]

Файл:C-bondedIr-acac.png
Structures of C-bonded "Ir(acac)3"

Uses

The O6-bonded isomer has been investigated for use chemical vapor deposition (CVD). One example is the deposition of red phosphorescent emitter compounds used in OLEDs.[5][6]

The C-bonded isomer has been investigated as a catalyst for C-H activation reactions.[4]

References

Шаблон:Reflist

Шаблон:Iridium compounds Шаблон:Acetylacetonate complexes

  1. V. G. Isakova, I. A. Baidina, N. B. Morozova, I. K. Igumenov "γ-Halogenated iridium(III) Acetylacetonates" Polyhedron 2000, Volume 19, Pages 1097–1103. Шаблон:Doi
  2. James E. Collins, Michael P. Castellani, Arnold L. Rheingold, Edward J. Miller, William E. Geiger, Anne L. Rieger, Philip H. Rieger "Synthesis, Characterization, and Molecular Structure of Bis(tetraphenylcyclopentdienyl)rhodium(II)" Organometallics 1995, pp 1232–1238. Шаблон:Doi
  3. Шаблон:Cite journal
  4. 4,0 4,1 Шаблон:Cite book
  5. "Synthesis of a high-efficiency red phosphorescent emitter for organic light-emitting diodes"
  6. "Highly Phosphorescent Bis-Cyclometalated Iridium Complexes:  Synthesis, Photophysical Characterization, and Use in Organic Light Emitting Diodes"