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Product Code M2389A1-100mg
Price £380 ex. VAT

AC-CNP, TADF yellow to orange dopant material

Available in sublimed grade for highly efficient TADF-OLED devices

Ac-CNP, 5,6-Bis(4-(9,9-dimethylacridin-10(9H)-yl)phenyl)pyrazine-2,3-dicarbonitrile is a TADF yellow to orange emitter with a simple structure of a low-rigid two cyano groups attached electron-accepting pyrazine unit and two electron-donating phenyl acridine units. The two phenyl units act as bridges to the donor acridines and acceptor pyrazine-2,3-dicarbonitrile to form a bipolar A-π-D electronic structure.

Ac-CNP has high photoluminescence quantum yield (PLQY) of 67% and Ac-CNP based devices with mCP as the TADF host showed a high external quantum efficiency (EQE) of 13.3%.

General Information

CAS Number 1883400-34-7
Chemical Formula C48H36N4
Molecular Weight 696.84 g/mol
Absorption λmax 282 nm, 436 nm in toluene
Fluorescence λmax 620 nm in toluene
HOMO/LUMO HOMO = 5.40 eV, LUMO = 3.10 eV [1]
Full Name 5,6-Bis(4-(9,9-dimethylacridin-10(9H)-yl)phenyl)pyrazine-2,3-dicarbonitrile
Synonyms 5,6-Bis[4-(9,9-dimethyl-9,10-dihydroacridine)pheny]-2,3-dicyano-pyrazine
Classification / Family Acridine derivatives, Pyrazines, TADF yellow to orange dopant, Sublimed small molecules

Chemical Structure

ac-cnp, 1883400-34-7 chemical structure, 5,6-Bis(4-(9,9-dimethylacridin-10(9H)-yl)phenyl)pyrazine-2,3-dicarbonitrile
Chemical Structure of 5,6-Bis(4-(9,9-dimethylacridin-10(9H)-yl)phenyl)pyrazine-2,3-dicarbonitrile (Ac-CNP), CAS 1883400-34-7

Product Details

Purity Sublimed* >98.0% (HPLC)
Melting Point N/A
Appearance Orange powder/crystals

*Sublimation is a technique used to obtain ultra-pure grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.

Device Structure

Device Structure ITO (110 nm)/NPD (40 nm)/mCP (10 nm)/Ac-CNP:mCP (6wt%, 20 nm)/PPF (10 nm)/TPBi (30 nm)/LiF (0.8 nm)/Al (100 nm) [1]
Colour orange light emitting device  Orange Red CIE (0.47, 0.51)
Max. EQE 13.3%
Max. Current Efficiency 38.1 cd/A
Max. Power Efficiency 26.1 Im/W

MSDS Documentation



Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2389A1 100 mg £380
Sublimed (>99.0% purity) M2389A1 250 mg £760
Sublimed (>99.0% purity) M2389A1 500 mg £1300
Sublimed (>99.0% purity) M2389A1 1 g £2200

Literature and Reviews

  1. Full-Color Delayed Fluorescence Materials Based on Wedge-Shaped Phthalonitriles and Dicyanopyrazines: Systematic Design, Tunable Photophysical Properties, and OLED Performance, I. Park et al., Adv. Funct. Mater., 26, 1813−1821 (2016); 10.1002/adfm.201505106.
  2. Recent Progress of Highly Efficient Red and Near-Infrared Thermally Activated Delayed Fluorescent Emitters, J. Kim et al., Adv. Opt. Mater., 6 (18), 1800255 (2018); DOI: 10.1002/adom.201800255.
  3. Molecular Design Strategy for Orange Red Thermally Activated Delayed Fluorescence Emitters in Organic Light-Emitting Diodes (OLEDs), K. Naveen et al., Chem. Eur. J., 28 (12), e202103532 (2022); DOI: 10.1002/chem.202103532.
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