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Iridium acetylacetonate is the
/ref>"Highly Phosphorescent Bis-Cyclometalated Iridium Complexes: Synthesis, Photophysical Characterization, and Use in Organic Light Emitting Diodes"
/ref> The C-bonded isomer has been investigated as a catalyst for C-H activation reactions.
iridium
Iridium is a chemical element; it has the symbol Ir and atomic number 77. This very hard, brittle, silvery-white transition metal of the platinum group, is considered the second-densest naturally occurring metal (after osmium) with a density ...
coordination complex
A coordination complex is a chemical compound consisting of a central atom or ion, which is usually metallic and is called the ''coordination centre'', and a surrounding array of chemical bond, bound molecules or ions, that are in turn known as ' ...
with the formula Ir(O2C5H7)3, which is sometimes known as Ir(acac)3. The molecule has D3-symmetry. It is a yellow-orange solid that is soluble in organic solvents.
Preparation and isomerism
It is prepared from IrCl3(H2O)3 and acetylacetone. The complex has been resolved into individualenantiomer
In chemistry, an enantiomer (Help:IPA/English, /ɪˈnænti.əmər, ɛ-, -oʊ-/ Help:Pronunciation respelling key, ''ih-NAN-tee-ə-mər''), also known as an optical isomer, antipode, or optical antipode, is one of a pair of molecular entities whi ...
s by separation of its adduct with dibenzoyltartaric acid.
A second linkage isomers is also known. In the second isomer one of the acetylacetonate ligands is bonded to Ir through carbon.
Uses
The O6-bonded isomer has been investigated for usechemical vapor deposition
Chemical vapor deposition (CVD) is a vacuum deposition method used to produce high-quality, and high-performance, solid materials. The process is often used in the semiconductor industry to produce thin films.
In typical CVD, the wafer (electro ...
(CVD). One example is the deposition of red phosphorescent emitter compounds used in OLED
An organic light-emitting diode (OLED), also known as organic electroluminescent (organic EL) diode, is a type of light-emitting diode (LED) in which the emissive electroluminescent layer is an organic compound film that emits light in respon ...
s."Synthesis of a high-efficiency red phosphorescent emitter for organic light-emitting diodes"/ref>"Highly Phosphorescent Bis-Cyclometalated Iridium Complexes: Synthesis, Photophysical Characterization, and Use in Organic Light Emitting Diodes"
/ref> The C-bonded isomer has been investigated as a catalyst for C-H activation reactions.
References
{{Acetylacetonate complexes Iridium compounds Acetylacetonate complexes