B2PymPm


Order Code: M2173A1
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Pricing

 Grade Order Code Quantity Price
Sublimed (>99% purity) M2173A1 250 mg £266.00
Sublimed (>99% purity) M2173A1 500 mg £426.00
Sublimed (>99% purity) M2173A1 1 g £682.00

General Information

CAS number 1266181-51-4
Full name 4,6-Bis(3,5-di(pyridin-2-yl)phenyl)-2-methylpyrimidine
Chemical formula C37H26N6
Molecular weight 554.64 g/mol
Absorption λmax 288 nm in chloroform
Fluorescence λmax 417 nm in chloroform
HOMO/LUMO HOMO = 6.62 eV, LUMO = 3.55 eV [1]; ET1 = 3.04 eV
Classification / Family Pyrimidine derivatives, Light-emitting diodes, Organic electronics, Electron-transport layer (ETL) materials, Hole-blocking layer (HBL) materials, Sublimed materials.

Product Details

Purity Sublimed: >99.0% (HPLC)
Melting point Tm = 257 °C (melting point); Tg = 107 °C (glass transition temperature)
Appearance White crystals/powder

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

 

chemical structure of B2PymPm
Chemical structure of B2PymPm; CAS No. 1266181-51-4.

 

Applications

B2PymPm, 4,6-Bis(3,5-di(pyridin-2-yl)phenyl)-2-methylpyrimidine, has a 2-methylpyrimidine core with four pyridine pendants. It is used as an electron-transport layer or hole-blocking layer material for OLED or photovoltaic devices.

Pyridine rings enable intramolecular and intermolecular hydrogen bondings in and between the molecules. This can cause the molecules to become planar and enhance the horizontal molecular orientation, thus leading to high charge mobility.

 

Literature and Reviews

  1. Influence of Substituted Pyridine Rings on Physical Properties and Electron Mobilities of 2-Methylpyrimidine Skeleton-Based Electron Transporters, H, Sasabe et al., Adv. Funct. Mater., 21, 336–342 (2011); DOI: 10.1002/adfm.201001252.
  2. Molecular Stacking Induced by Intermolecular C–H···N Hydrogen Bonds Leading to High Carrier Mobility in Vacuum-Deposited Organic Films, D. Yokoyama et al., Adv. Funct. Mater., 21, 1375–1382 (2011); DOI: 10.1002/adfm.201001919.
  3. Development of high performance OLEDs for general lighting, H. Sasabe et al., J. Mater. Chem. C, 1, 1699 (2013); DOI: 10.1039/c2tc00584k.
  4. Multifunctional Materials in High-Performance OLEDs: Challenges for Solid-State Lighting, H. Sasabe et al., Chem. Mater., 23, 621–630 (2011); DOI: 10.1021/cm1024052.
  5. Recent Progress in Phosphorescent Organic Light-Emitting Devicee, H. Sasabe et al., Eur. J. Org. Chem., 7653–7663 (2013); DOI: 10.1002/ejoc.201300544.