Charge Transport Layer Materials, Electron Transport Layer Materials, High Purity Sublimed Materials
B3PymPm is an isomer to B2PymPm and B4PymPm, with a 2-methylpyrimidine core structure with four pyridine pendants. It is electron-deficient and can be used in OLED devices as an electron-transporting or hole-blocking layer material.
B3PymPm is known to form hydrogen bonding in and between molecules. The intermolecular and intramolecular hydrogen bonding are believed to promote film morphology - hence enhancing charge mobility.
Due to its electron-deficient nature, together with TCTA, B3PymPm is also used in thermally activated delayed fluorescent (TADF) devices as an exciplex-forming co-host to fabricate highly-efficient fluorescent organic light-emitting diodes.
| CAS number | 925425-96-3 |
|---|---|
| Full name | 4,6-Bis(3,5-di(pyridin-3-yl)phenyl)-2-methylpyrimidine, 4,6-Bis(3,5-di-3-pyridinylphenyl)-2-methylpyrimidine |
| Chemical formula | C37H26N6 |
| Molecular weight | 554.64 g/mol |
| Absorption* | λmax 248 nm in DCM |
| Fluorescence | n/a |
| HOMO/LUMO | HOMO = 6.97 eV, LUMO = 3.53 eV [1]; ET1 = 3.08 eV |
| Classification / Family | Pyrimidine derivatives, Highly efficient light-emitting diodes, Organic electronics, Electron-transport layer (ETL) materials, Hole-blocking layer (HBL) materials, Sublimed materials. |
* Measurable with an USB spectrometer, see our spectrometer application notes.
| Purity | Sublimed >99.0% (HPLC), unsublimed >98.0% |
|---|---|
| Melting point | 326 °C |
| Appearance | White crystals/powder |
* Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials.
Chemical structure of B3PymPm专业代理国外知名镊子品牌
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