Iridium acetylacetonate
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| Identifiers | |
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| ECHA InfoCard | 100.036.086 |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| C15H21IrO6 | |
| Molar mass | 489.544 g·mol−1 |
| Appearance | orange solid[1] |
| Melting point | 269 to 271 °C (516 to 520 °F; 542 to 544 K) (decomposes) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Iridium acetylacetonate are iridium coordination complex with the formula Ir(O2C5H7)3, which is sometimes known as Ir(acac)3. The molecule has D3-symmetry.[2] It is a yellow-orange solid that is soluble in organic solvents. Two isomers are known, both prepared from IrCl3(H2O)3 and acetylacetone. Procedures exist that favor the O6-isomer[3] and the C-bonded form.[4]
C-bonded isomer
A second isomer of Iridium acetylacetonate is also known. In this isomer, two of the acetylacetonate ligands are bonded to Ir through carbon.[4]
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
- ^ Iridium acetylacetonate
- ^ V. G. Isakova, I. A. Baidina, N. B. Morozova, I. K. Igumenov "γ-Halogenated iridium(III) Acetylacetonates" Polyhedron 2000, Volume 19, Pages 1097–1103. doi:10.1016/S0277-5387(00)00358-2
- ^ 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. doi:10.1021/om00003a025
- ^ a b c S. M. Bischoff, R. A. Periana "Oxygen and Carbon Bound Acetylacetonato Iridium(III) Complexes"Inorganic Syntheses, 2010, Volume 35, p. 173. doi:10.1002/9780470651568
- ^ "Synthesis of a high-efficiency red phosphorescent emitter for organic light-emitting diodes"
- ^ "Highly Phosphorescent Bis-Cyclometalated Iridium Complexes: Synthesis, Photophysical Characterization, and Use in Organic Light Emitting Diodes"
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