141752-82-1

Basic information

• Product Name: N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine
• Synonyms: N,N,N',N'-tetra-naphthalen-2-yl-benzidine;N,N,N',N'-Tetra-2-naphthalnyl-[1,1'-biphenyl]-4,4'-diaMine;N,N,N′,N′-Tetrakis(2-naphthyl)benzidine;N,N,N',N'-Tetra(2-naphthyl)benzidine;N,N,N',N'-TETRAKIS(NAPHTH-2-YL)BENZIDINE;N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine;N,N,N',N'-Tetra(2-na;TNB,N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diaMine
• CAS NO: 141752-82-1
• Molecular Formula: C52H36N2
• Molecular Weight: 688.86
• Product Categories: electronic;White powder
• Mol File: 141752-82-1.mol
• Article Data: 1

Chemical Properties

• Melting Point: 243.2-246.1°C
• Appearance: /
• Density: 1.245 g/cm³
• Storage Temp.: 2-8°C
• PKA: -2.77±0.30(Predicted)
• CAS DataBase Reference: N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine(CAS DataBase Reference)
• NIST Chemistry Reference: N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine(141752-82-1)
• EPA Substance Registry System: N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine(141752-82-1)

Safety Data

• WGK Germany: 3
• Hazardous Substances Data: 141752-82-1(Hazardous Substances Data)

Usage

Description

N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine is a complex organic compound characterized by its unique molecular structure that features multiple naphthalene and biphenyl groups attached to a central diamine core. This structure endows the compound with specific optical and electronic properties that make it suitable for various applications in the field of material science and electronics.

Uses

Used in OLED Devices:
N,N,N',N'-Tetra(2-naphthalenyl)(1,1'-biphenyl)-4,4'-diamine is used as a high-performance host material for OLED (Organic Light-Emitting Diode) devices. Its application in this industry is due to its ability to enhance the efficiency of these devices, as demonstrated by an external electroluminescence efficiency of approximately 12%. This improvement in efficiency can lead to better performance and longer lifespan of OLED devices, making them more competitive in the market.

Upstream product

• 580-13-2 2-bromonaphthalene 
• 92-87-5 p,p'-diaminobiphenyl 

Relevant articles and documents

Effects of solvent and base on the palladium-catalyzed amination: PdCl 2(Ph3P)2/Ph3P-catalyzed selective arylation of primary anilines with aryl bromides

A readily accessible catalytic system, PdCl2(Ph 3P)2/Ph3P, was developed for the selective arylation of primary anilines with aryl bromides. The strong influence of solvents and bases on the catalytic activity was observed. In refluxing o-xylene, triphenylphosphine shows high efficiency for Pd-catalyzed intermolecular amination reactions. By changing the bases, mono- and diarylation of primary amines could be selectively achieved in high yields. Moreover, the catalytic system showed good toleration for the steric hindrance of anilines. A series of N,N,N′,N′-tetraaryl-1,1′-biphenyl-4,4′- diamines, important intermediates of OLED hole transport materials, were synthesized facilely via coupling reactions between 4,4′-diaminobiphenyls and aryl bromides.