Ir(MDQ)2(acac) has a 2-methyldibenzo[f,h]quinoxaline ligand that coordinates with the iridium metal center via the formation of Ir-N and Ir-C bonds.
Ir(MDQ)2(acac) is another family member of iridium complexes, which are the most effective phosphorescent emitters employed in OLEDs. Devices based on Ir(MDQ)2(acac) emit orange-red light, with a maximum emission of 600-614 nm. OLEDs with Ir(MDQ)2(acac) as an emitting layer material give great brightness and exceedingly-high external quantum, current, and power efficiencies.
General Information
CAS number
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536755-34-7
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Full name
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Bis(2-methyldibenzo[f,h]quinoxaline)(acetylacetonate) iridium(III)
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Chemical formula
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C39H29N4O2Ir
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Molecular weight
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777.89 g/mol
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Absorption
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λmax 370 nm in DCM
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Fluorescence
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λmax 608 nm in THF
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HOMO/LUMO
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HOMO = 5.4 eV, LUMO = 2.8 eV [1]
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Classification / Family
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Iridium complexes, Phosphorescent red-orange emitter, Sublimed materials, Organic electronics.
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Product Details
Purity
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99%
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Melting point
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n/a
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Appearance
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Red crystals/powder
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Chemical Structure
Chemical structure of
Bis(2-methyldibenzo[f,h]quinoxaline)(acetylacetonate) iridium(III), Ir(MDQ)
2(acac), C
AS 536755-34-7
Device Structure(s)
Device structure
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ITO/MoO3 (3 nm)/TAPC (40 nm)/Ir(MDQ)2(acac) (2 wt%):26DCzPPy (10 nm)/TmPyPB (40 nm)/LiF (1 nm)/Al (100 nm) [1]
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Colour
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Red
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Max. Power Efficiency
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24.39 lm W−1
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Max. Current Efficiency
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35.2 cd/A
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Max. EQE
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12.3%
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Device structure
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ITO/MoO3 (3 nm)/TAPC (40 nm)/Ir(MDQ)2(acac) (2 wt%):TcTa (10 nm)/Ir(MDQ)2(acac) (2 wt%):26DCzPPy (10 nm)/TmPyPB (40 nm)/LiF (1 nm)/Al (100 nm) [1]
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Colour
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Red
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Max. Power Efficiency
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40.19 lm W−1
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Max. Current Efficiency
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44.76 cd/A
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Max. EQE
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15.5%
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Device structure
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ITO/HAT-CN (10 nm)/TAPC (45 nm)/TCTA (10 nm)/Ir(MDQ)2(acac) (0.02 nm)/Ir(ppy)2(acac) (0.02 nm)/FIrpic (0.3 nm)/TmPyPb (40 nm)/ Liq (2 nm)/Al (120 nm) [2]
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Colour
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White
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Max. Power Efficiency
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46.1 lm W−1
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Max. Current Efficiency
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45.5 cd/A
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Max. EQE
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17.6%
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Device structure
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ITO/HAT-CN (10 nm)/TAPC (45 nm)/TCTA (7 nm)/Ir(ppy)2(acac) (0.02 nm)/FIrpic (0.3 nm)/TCTA (3 nm)/ Ir(MDQ)2(acac) (0.02 nm)/TmPyPb (3 nm)/Ir(ppy)2(acac) (0.02 nm)/FIrpic (0.3 nm)/TmPyPb (37 nm)/Liq (2 nm)/Al (120 nm) [2]
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Colour
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White
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Max. Power Efficiency
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43.1 lm W−1
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Max. Current Efficiency
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44.0 cd/A
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Max. EQE
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17.2%
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Device structure
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NPB (50 nm)/Ir(MDQ)2(acac):CBP(5.7%, 30 nm)/T PBI (15 nm)/Alq (35 nm) [3]
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Colour
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Red
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Max. Power Efficiency
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13.7 lm W−1
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Max. Current Efficiency
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26.2 cd/A
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Max. EQE
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12.4
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Device structure
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ITO/HAT-CN (10 nm)/SAFDPA (45 nm)/ SAFDPA:Bphen (1:1, w/w):Ir(MDQ)2(acac) (2 wt %, 20 nm)/Bphen (45 nm)/Liq (2 nm)/Al (120 nm) [4]
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Colour
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Reddish-Orange
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Max. Power Efficiency
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31.8 lm W−1
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Max. Current Efficiency
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32.0 cd/A
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Max. EQE
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10.7%
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