884302-97-0

Basic information

• Product Name: 9,9'-(1,1':2',1''-terphenyl-4,4''-diyl)dicarbazole
• Synonyms: 9,9'-(1,1':2',1''-terphenyl-4,4''-diyl)dicarbazole
• CAS NO: 884302-97-0
• Molecular Weight: 560.698
• Mol File: 884302-97-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 9,9'-(1,1':2',1''-terphenyl-4,4''-diyl)dicarbazole(CAS DataBase Reference)
• NIST Chemistry Reference: 9,9'-(1,1':2',1''-terphenyl-4,4''-diyl)dicarbazole(884302-97-0)
• EPA Substance Registry System: 9,9'-(1,1':2',1''-terphenyl-4,4''-diyl)dicarbazole(884302-97-0)

Safety Data

• Hazardous Substances Data: 884302-97-0(Hazardous Substances Data)

Upstream product

• 419536-33-7 4-(carbazol-9-yl)phenylboronic acid 
• 583-53-9 2,3-dibromobenzene 

Relevant articles and documents

Carborane-based optoelectronically active organic molecules: Wide band gap host materials for blue phosphorescence

Carborane-based host materials were prepared to fabricate deep blue phosphorescence organic light-emitting diodes (PHOLEDs), which constituted three distinctive geometrical structures stemming from the corresponding three different isomeric forms of carboranes, namely, ortho-, meta-, and para-carboranes. These materials consist of two carbazolyl phenyl (CzPh) groups as photoactive units on each side of the carborane carbons to be bis[4-(N-carbazolyl)phenyl]carboranes, o-Cb, m-Cb, and p-Cb. To elaborate on the role of the carboranes, comparative analogous benzene series (o-Bz, m-Bz, and p-Bz) were prepared, and their photophysical properties were compared to show that advantageous photophysical properties were originated from the carborane structures: high triplet energy. Unlike m-Bz and p-Bz, carborane-based m-Cb and p-Cb showed an unconjugated nature between two CzPh units, which is essential for the blue phosphorescent materials. Also, the carborane hosts showed high glass transition temperatures (Tg) of 132 and 164 °C for m-Cb and p-Cb, respectively. Albeit p-Cb exhibited slightly lower hole mobility when compared to p-Bz, it still lies at the high end hole mobility with a value of 1.1 × 10-3 cm2/(V s) at an electric field of 5 × 105 V/cm. Density functional theory (DFT) calculations revealed that triplet wave functions were effectively confined and mostly located at either side of the carbazolyl units for m-Cb and p-Cb. Low-temperature PL spectra indeed provided unequivocal data with higher triplet energy (T1) of 3.1 eV for both m-Cb and p-Cb. p-Cb was successfully used as a host in deep blue PHOLEDs to provide a high external quantum efficiency of 15.3% and commission internationale de l'elcairage (CIE) coordinates of (0.15, 0.24).