[1,1':4',1'':4'',1'''-Quaterphenyl]-4,4'''-diamine

CAS Number 53693-67-7

COF Ligands, Diamines and Dianhydrides, Materials, Monomers, Porous Organic Frameworks

[1,1':4',1'':4'',1'''-Quaterphenyl]-4,4'''-diamine MSDS

[1,1':4',1'':4'',1'''-Quaterphenyl]-4,4'''-diamine CAS 53693-67-7

Covalent Organic Frameworks (COFs) Quaterphenyl Ligand

A rigid rod-like diamine bridging ligand linker for covalent polymeric frameworks (CPFs) in application of light emitting diodes, adsorption of polyfluoroalkyls (PFAs)

Specifications | MSDS | Literature and Reviews

[1,1':4',1'':4'',1'''-Quaterphenyl]-4,4'''-diamine (QPDA) is a rod-like linear structure with amino groups on both ends, a match with two striking ends. [1,1':4',1'':4'',1'''-quaterphenyl]-4,4'''-diamine is commonly used as a precursor for constructing hole extraction layer or covalent organic frameworks (COFs).

4P-NPD, derived from [1,1':4',1'':4'',1'''-quaterphenyl]-4,4'''-diamine, has been successfully used as blue emission layer, efficient excitation blocking, hole extraction layer material in OLED, perovskite, and organic solar cells. By harvesting triplet excitons from the fluorescent blue emitter 4P-NPD, white OLED based on Ir(MDQ)₂(acac):4P-NPD as the emissive layer demonstrates strongly reduced roll-off efficiency with an external power efficiency (EQE) of 24.1%, and a power efficiency of 49.3 lm W^-1 at a luminance of 1000 cd m^-2.

Covalent organic frameworks based on [1,1':4',1'':4'',1'''-quaterphenyl]-4,4'''-diamine as the rod-like linker has larger pore sizes for highly effective adsorption and removal of per- and polyfluoroalkyl substances (PFAS) from water.

MOF and COF ligands

Diamine ligand for cross-linked COF networks

Worldwide shipping

Quick and reliable shipping

High purity

>97% High purity

Facile reactions

Readily for polycondensation reaction to form imines and amides

General Information

CAS Number	53693-67-7
Chemical Formula	C₂₄H₂₀N₂
Full Name	[1,1':4',1'':4'',1'''-Quaterphenyl]-4,4'''-diamine
Molecular Weight	440.82 g/mol
Synonyms	QPDA, 4-[4-[4-(4-Aminophenyl)phenyl]phenyl]aniline, p,p'-Diaminoquaterphenyl
Classification / Family	Quaterphenyls, Amines, COF ligands

Chemical Structure

Product Details

Purity	> 97%
Melting Point	312–315 °C (lit)
Appearance	Pale brown to brown powder/crystals

MSDS Documentation

[1,1':4',1'':4'',1'''-Quaterphenyl]-4,4'''-diamine MSDS Sheet

Literature and Reviews

Quaterphenyl. Part I. Some dihydroxy-derivatives, J. Harley-Mason et al., J. Chem. Soc., 1379-1385 (1940); DOI: 10.1039/JR9400001379.
Synthesis and mutagenic properties of 4,4'-diamino-p-terphenyl and 4,4'-diamino-p-quaterphenyl, J. Wang et al., Color. Technol., 123, 34–38 (2007); DOI: 10.1111/j.1478-4408.2006.00058.x.
Removal of typical PFAS from water by covalent organic frameworks with different pore sizes, W. Wang et al., J. Hazard. Mater., 460, 132522 (2023); DOI: 10.1016/j.jhazmat.2023.132522.

Reduced efficiency roll-off in high-efficiency hybrid white organic light-emitting diodes, G. Schwartz et al., Appl. Phys. Lett., 92, 053311 (2008); DOI: 10.1063/1.2836772.
Reversible modulation of interlayer stacking in 2D copper-organic frameworks for tailoring porosity and photocatalytic activity, P. You et al., Nat. Commun., 15, 194 (2024); DOI: 10.1038/s41467-023-44552-w.