943784-68-7

Upstream product

• 808758-81-8 4-[bis-(4-iodophenyl)amino]benzaldehyde 
• 122-39-4 diphenylamine 
• 603-34-9 N,N-diphenylaminobenzene 
• 4181-05-9 4-(diphenylamino)benzaldehyde 

Downstream Products

• 251932-74-8 4-{N,N-bis[4-(N,N-diphenylamino)phenyl]amino}-1-vinylbenzene 
• 1421017-07-3 tetramethyl (((6-(4-(4-(bis(4-(diphenylamino)phenyl)amino)styryl)phenyl)-1,3,5-triazine-2,4-diyl)bis(4,1-phenylene))bis(methylene))bis(phosphonate)nd 
• 1542275-73-9 1-methyl-2-[4-bis[4-(diphenylamino)phenyl]aminophenyl]-1H-benzimidazole 
• 1542275-70-6 2-[4-Bis[4-(diphenylamino)phenyl]aminophenyl]-1H-benzimidazole 

Relevant academic research and scientific papers

Controlled Energy Transfer from a Ligand to an EuIII Ion: A Unique Strategy to Obtain Bright-White-Light Emission and Its Versatile Applications

A new diphenylamine-functionalized ancillary-ligand-coordinated europium(III) β-diketonate complex showed incomplete photoexcitation energy transfer from a ligand to a EuIII ion. A solvatochromism study led to a balancing of the primary colors to obtain single-molecule white-light emission. Thermal-sensing analysis of the europium complex was executed. The europium complex, conjugated with a near-UV-light-emitting diode (395 nm), showed appropriate white-light-emission CIE color coordinates (x = 0.34 and y = 0.33) with a 5152 K correlated color temperature.

Cyano three aniline organic small molecule red light material and its synthesis and use

The invention discloses a cyanotriphenylamine organic small molecular red emitting material, a synthesis method and use thereof. The synthesis method includes: taking triphenylamine as the raw material to react with POCl3 to synthesize an intermediate 4-(diphenylamino)benzaldehyde; subjecting the 4-(diphenylamino)benzaldehyde to reaction to obtain 4-bis(4-iodophenyl)aminobenzaldehyde; reacting the 4-bis(4-iodophenyl)aminobenzaldehyde with diphenylamine to obtain 4-(bis-(4-(diphenylamino)phenyl)amino)benzaldehyde and 4-((4-( diphenylamino)phenyl)(4-iodophenyl)amino)benzaldehyde; and reacting 4-(diphenylamino)benzaldehyde and the product of the last step respectively with malononitrile, cyano-acrylate or 2-(3, 5, 5-trimethylcyclohexenyl-2-octenylidene)malononitrile to obtain a novel cyanotriphenylamine compound. The invention preliminarily studies the relevant optical properties of the product, and lays the foundation for development of the product into a novel red emitting material with excellent performance.

Self-host homoleptic green iridium dendrimers based on diphenylamine dendrons for highly efficient single-layer PhOLEDs

The fabrication of electroluminescent devices that combine high device performance with simple device configuration remains an attractive challenge due to their low cost and simple fabrication processes. In this paper, a new series of electrophosphorescent small molecule iridium(iii) complexes with diphenylamine-based dendrons of good solubility have been designed. The relationships between their dendritic structures and their photophysical, electrochemical, and electrophosphorescent performances have been systematically investigated. With second-generation dendrons, the photoluminescence quantum yields of the neat film of the dendrimers are almost seven times higher than that of their prototype G0 (Ir(LG0)3, LG0 = 1-methyl-2-phenyl-1H- benzimidazole), and three times that of the first-generation dendron G1 (Ir(LG1)3, LG1 = 4-(1-methyl-1H-benzimidazol-2-yl)-N,N- diphenylbenzenamine). High-quality films of the dendrimers G2 (Ir(LG2) 3, LG2 = 1-methyl-2-[4-bis[4-(diphenylamino)phenyl]-aminophenyl]-1H- benzimidazole) and G2Cz (Ir(LG2Cz)3, LG2Cz = 1-methyl-2-[4-bis[4-(9- carbazolyl)phenyl]-aminophenyl]-1H-benzimidazole) have been fabricated by spin-coating, producing highly efficient, non-doped phosphorescent organic light-emitting diodes (PhOLEDs). With a device structure of indium tin oxide/poly(3,4-ethylene-dioxythiophene):poly(styrene sulfonic acid)/neat dendrimer/Cs2CO3/Al, maximum luminous efficiencies of 14.02 cd A-1 and 18.35 cd A-1 have been realized, exhibiting ultrahigh luminous efficiency for single-layer self-host green PhOLEDs. The excellent performances are due to the flower bouquet-shaped iridium dendrimers, which may improve the electron injection and result in greater balance between electron and hole fluxes by the exposure of electron-deficient moieties. The molecular design reported here provides a simple and effective approach to balance charge injection/transporting capacities and develops highly efficient non-doped phosphors suitable for low-cost single-layer device technologies.

A red fluorescent 'turn-on' chemosensor for Hg2+ based on triphenylamine-triazines derivatives with aggregation-induced emission characteristics

A new sensitive and selective red fluorescence 'turn on' chemosensor 1 for Hg2+ was developed by taking advantage of AIE feature of triphenylamine-triazines motif and the specific binding of thymine with Hg 2+. Moreover, chemosensor 1 exhibited large two-photon absorption cross-section (3328 GM).

Starburst triarylamine donor-acceptor-donor quadrupolar derivatives based on cyano-substituted diphenylaminestyrylbenzene: Tunable aggregation-induced emission colors and large two-photon absorption cross sections

In this work, we have developed a new class of aggregation-induced emission (AIE) active compounds, in which three electron-donating diphenylamine, phenothiazine, or carbazole groups are connected to the 1, 4-positions of the benzene through bis(α-cyano-4-diphenylaminostyryl) conjugation bridges to form three triarylamine quadrupolar derivatives (3a-c). Their one-and two-photon absorption properties have been investigated. The two-photon absorption (2PA) cross sections measured by the open-aperture Z-scan technique were determined to be 1016, 1484, and 814 GM for 3a-c, respectively. From this result, the high 2PA properties of these molecules are attributed to the extended π system and enhanced intramolecular charge transfer from the starburst triarylamine to the cyano group. Moreover, cyano-substituted diphenylamine styrylbenzene (CNDPASB)-based compounds are very weakly fluorescent in THF, but their intensities increase by almost 230, 70, and 5 times, respectively, in water/THF (v/v 90%) mixtures, in which they exhibit strongly enhanced red, orange, and deep yellow fluorescence emissions, respectively. This result indicates that the intramolecular vibration and rotation of these dyes is considerably restricted in nano-aggregates formed in water, leading to significant increases in fluorescence. It was found that the color tuning of the CNDPASB-based compounds could be conveniently accomplished by changing the starburst triarylamine donor moiety. Multilayer electroluminescence devices with TPBI (2,2′, 2′′-(benzene-1,3,5-triyl)-tri(1-phenyl-1H-benzimidazole)) electron-transporting layers have been made, with 3a and 3c as a non-doping red-yellow emitter. The preliminary results for these multilayer devices show a maximum efficiency of 0.25°, and electroluminescence (EL) wavelengths around 568 nm. The excellent 2PA and AIE properties of these compounds make them potential materials for biophotonic applications.

Hole-transporting host-Polymer series consisting of triphenylamine basic structures for phosphorescent polymer light-Emitting diodes

A series of novel styrene derived monomers with triphenylamine-based units, and their polymers have been synthesized and compared with the well-known structure of polymer of N,N′-bis(3-methylphenyl)-N,N′- diphenylbenzidine with respect to their hole-transporting behavior in phosphorescent polymer light-emitting diodes (PLEDs). A vinyltriphenylamine structure was selected as a basic unit, functionalized at the para positions with the following side groups: diphenylamine, 3-methylphenyl-aniline, 1- and 2-naphthylamine, carbazole, and phenothiazine. The polymers are used in PLEDs as host polymers for blend systems with the following device configuration: glass/indium-tin-oxide/PEDOT:PSS/polymer-blend/CsF/Ca/ Ag. In addition to the hole-transporting host polymer, the polymer blend includes a phosphorescent dopant [r(Me-ppy)3] and an electron-transporting molecule (2-(4-biphenyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole). We demonstrate that two polymers are excellent hole-transporting matrix materials for these blend systems because of their good overall electroluminescent performances and their comparatively high glass transition temperatures. For the carbazole-substituted polymer (Tg = 246 °C), a luminous efficiency of 35 cd A -1 and a brightness of 6700 cd m-2 at 10 V is accessible. The phenothiazine-functionalized polymer (Tg= 220 °C) shows nearly the same outstanding PLED behavior. Hence, both these polymers outperform the well-known polymer of N,N′-bis(3-methylphenyl)-N,N′- diphenylbenzidine, showing only a luminous efficiency of 7.9 cd A-1 and a brightness of 2500 cd m-2 (10 V).

Multibranched triarylamine end-capped triazines with aggregation-induced emission and large two-photon absorption cross-sections

Multibranched triarylamine derivatives with a 1,3,5-triazine core have been synthesized and exhibit aggregation-induced emission and a large two-photon absorption cross section (8629 GM).

The synthesis of robust, polymeric hole-transport materials from oligoarylamine substituted styrenes

Novel styrene-based oligoarylamine monomers are described which are suitable for the preparation of polymeric hole-transport materials, with very high glass transition temperatures. The monomers are prepared using the Wittig reaction from the appropriate aldehyde precursor, which was assembled using the classical Ullmann reaction. A number of the monomers yielded high-quality crystals which facilitated X-ray characterisation. Polymerisation was achieved either by solution free-radical initiation or by condensed phase thermal autopolymerisation. The latter suggests a method of initiator-free polymerisation which may have potential for multilayer device fabrication. The Royal Society of Chemistry.