2,8-Bis(diphenylphosphoryl)dibenzo[b,d]thiophene Chemical Properties

Boiling point:

830.1±60.0 °C(Predicted)

Density 

1.34±0.1 g/cm3(Predicted)

storage temp. 

Store at room temperature

form 

solid

color 

white

InChI

1S/C36H26O2P2S/c37-39(27-13-5-1-6-14-27,28-15-7-2-8-16-28)31-21-23-35-33(25-31)34-26-32(22-24-36(34)41-35)40(38,29-17-9-3-10-18-29)30-19-11-4-12-20-30/h1-26H

InChIKey

FLOCBCIFBBVRCJ-UHFFFAOYSA-N

SMILES

C12=CC=C(P(OC3=CC=CC=C3)(OC3=CC=CC=C3)=O)C=C1C1=CC(P(OC3=CC=CC=C3)(OC3=CC=CC=C3)=O)=CC=C1S2

Melting point:

TGA: >320 °C(0.5% weight loss)

Absorption

λmax312, 328 nm in DCM

Safety Information

WGK Germany 

WGK 3

Storage Class

11 - Combustible Solids

2,8-Bis(diphenylphosphoryl)dibenzo[b,d]thiophene Usage And Synthesis

Description

PPT is an ambipolarphosphorescent host materials with an electron-rich dibenzothiophene core and two electron-deficientdiphenyl-phosphoryl side arms. For this reason,PPT is a good electron-transport material with higher electron mobility rate, offering better electron injection.

Uses

2,8-Bis(diphenylphosphoryl)dibenzo[b,d]thiophene (PPT) can be used as an electro-transport material to enhance the efficiency and lifetime of inverted organic light-emitting diodes (iOLEDs), but its performance is lower than 2,8-bis(diphenylphosphoryl)dibenzo[b,d]thiophene sulfone (PPT-S)^[1]. In addition, PPT is also employed in the preparation of organic amorphous films. Research indicates that pure PPT films exhibit negative spontaneous orientational polarisation (SOP), yet this polarity can transition to positive SOP with increasing concentrations of non-polar molecules^[2].
[1] SHIZUKA KAWAMURA. Effects of Energy-Level Alignment on Characteristics of Inverted Organic Light-Emitting Diodes[J]. ACS Applied Materials & Interfaces, 2019, 11 24: 21749-21755. DOI:10.1021/acsami.9b03895.
[2] YUUHI UEDA . A polar transition of spontaneous orientation polarization in organic amorphous thin films[J]. Chemical Physics Letters, 2023, 833: Article 140915. DOI:10.1016/j.cplett.2023.140915.

2,8-Bis(diphenylphosphoryl)dibenzo[b,d]thiophene(1019842-99-9)Related Product Information

• PPT