374592-88-8

Basic information

• Product Name: N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine
• Synonyms: N,N'-Di-1-naphthyl-N,N'-di-2-naphthylbenzidine;N,N'-Di-1-naphthyl-N,N'-di-2-naphthylbenzidine;N,N'-Di(1-naphthyl)-N,N'-di(2-naphthyl)-4,4'-biphenyldiamine;N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine;α,β-TNB,N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-;N,N'-di(naphthalenyl)-N,N'-di(naphthalen-2-yl)-benzidine
• CAS NO: 374592-88-8
• Molecular Formula: C52H36N2
• Molecular Weight: 688.86
• Product Categories: OLED materrials
• Mol File: 374592-88-8.mol

Chemical Properties

• Melting Point: 134℃
• Appearance: /
• Density: 1.244
• PKA: -2.77±0.30(Predicted)
• CAS DataBase Reference: N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine(CAS DataBase Reference)
• NIST Chemistry Reference: N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine(374592-88-8)
• EPA Substance Registry System: N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine(374592-88-8)

Safety Data

• Hazardous Substances Data: 374592-88-8(Hazardous Substances Data)

Usage

Uses

Used in Organic Light-Emitting Diodes (OLEDs):
N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine is utilized as a charge transport material in OLEDs, enhancing the efficiency and stability of these devices by facilitating the movement of holes to the emissive layer.
Used in Organic Photovoltaic Cells:
In the field of organic photovoltaics, TNDB serves as a promising material due to its beneficial electronic and optical characteristics, which can improve the performance of solar cells by enhancing charge transport and light absorption.
Used in Organic Thin-Film Transistors (OTFTs):
N4,N4'-Di-1-naphthalenyl-N4,N4'-di-2-naphthalenyl-[1,1'-biphenyl]-4,4'-diamine is employed in the development of organic thin-film transistors, where it contributes to the improvement of device performance through its role in charge transport and its impact on the overall electronic properties of the transistor.
Used in Charge Transport Layers:
TNDB is used as a hole injection layer in organic light-emitting diodes, ensuring efficient injection of holes into the emissive layer, which is crucial for the device's light emission and overall performance.

Upstream product

• 3001-15-8 4,4'-diiodobiphenyl 
• 4669-06-1 N-naphthyl-N-2-naphthylamine 

Relevant articles and documents

PROCESS FOR FORMING AN AROMATIC AMINE COMPOUND

A process for forming an aromatic amine product comprises the steps of (a) combining an aromatic primary or secondary initial amine with an aromatic halide compound in the presence of a palladium complex and a phosphine compound catalyst to form a mixture; (b) heating the mixture to a first temperature of at least 60°C; (c) adding a base material to the heated mixture; and (d) maintaining the temperature of the mixture at or above the first temperature for a period of time sufficient to form as a product an aromatic substituted form of the aromatic primary or secondary initial amine. The process provides products of high purity in good yields.

AROMATIC AMINES WITH LOW SOLVATION

A process for preparing a polymorph of a N,N,N',N'-tetraaryldiamine having low solvation comprises: a) crystallizing the diamine from a solvent comprising a hydrocarbon to form a solvated polymorph; b) mixing the amine with an alcohol; c) distilling the mixture to remove a portion of the solvent; and d) repeating steps b and c until the desired level of low solvation is achieved. The process enables reduced solvation levels in the polymorph.