189178-08-3

Upstream product

• 4181-20-8 tris(4-iodophenyl)amine 
• 1066-54-2 trimethylsilylacetylene 
• 603-34-9 N,N-diphenylaminobenzene 
• 603-35-0 triphenylphosphine 

Downstream Products

• 189178-09-4 tri(4-ethynylphenyl)amine 
• 359647-66-8 tris-4,4',4''-(pyridin-4-ylethynyl)triphenylamine 
• 848568-96-7 tris-4,4',4''-(4-methoxycarbonylphenylethynyl)triphenylamine 
• 1421132-94-6 tris[4-({4-[S-(trifluoromethyl)-N-(acyl)sulfinimidoyl]phenyl}ethynyl)phenyl]amine 
• 1421132-95-7 tris{4-[(4-{S-(trifluoromethyl)-N-[(trifluoromethyl)sulfonyl]sulfonimidoyl}phenyl)ethynyl]phenyl}amine 
• 1581300-11-9 tris[4-{2-(4,6-dimethylpyrimidin-2-yl)ethynylpheny}]amine 
• 1581300-12-0 tris[4-(6-phenylpyridazin-3-yl)ethynylphenyl]amine 

Relevant academic research and scientific papers

Metallated Graphynes as a New Class of Photofunctional 2D Organometallic Nanosheets

Two-dimensional (2D) nanomaterials are attracting much attention due to their excellent electronic and optical properties. Here, we report the first experimental preparation of two free-standing mercurated graphyne nanosheets via the interface-assisted bottom-up method, which integrates both the advantages of metal center and graphyne. The continuous large-area nanosheets derived from the chemical growth show the layered molecular structural arrangement, controllable thickness and enhanced π-conjugation, which result in their stable and outstanding broadband nonlinear saturable absorption (SA) properties (at both 532 and 1064 nm). The passively Q-switched (PQS) performances of these two nanosheets as the saturable absorbers are comparable to or higher than those of the state-of-the-art 2D nanomaterials (such as graphene, black phosphorus, MoS2, γ-graphyne, etc.). Our results illustrate that the two metallated graphynes could act not only as a new class of 2D carbon-rich materials, but also as inexpensive and easily available optoelectronic materials for device fabrication.

Self-Assembly of Metallo-Supramolecules under Kinetic or Thermodynamic Control: Characterization of Positional Isomers Using Scanning Tunneling Spectroscopy

Coordination-driven self-assembly has been extensively employed to construct a variety of discrete structures as a bottom-up strategy. However, mechanistic understanding regarding whether self-assembly is under kinetic or thermodynamic control is less exp

Hollow and microporous triphenylamine networks post-modified with TCNE for enhanced organocathode performance

Hollow microporous triphenylamine networks (H-MTPN) were post-modified with tetracyanoethylene (TCNE) to generate tetracyanobutadiene moieties in H-MTPN-TCNE. The H-MTPN-TCNE showed the improved electrochemical performance of cathode materials for lithium ion batteries, compared to the original H-MTPN.

Optical properties of triphenylamine decorated with naphthalimide

A propeller conformed triphenylamine molecule was decorated with naphthalimide. The two fluorophores were bonded with alkynyl bridge unit, which conjugates the two fragments. The resulting compound was fully characterized. Several solvents were used to investigate its absorption and emission behavior with the solvent polarity variation from weak to strong. The quantum yield increased with the increasing of solvent polarity. It is also highly emissive in film and in a solid with significant emission shift toward longer wavelength, reaching to 544 and 593?nm, respectively. The underlying signal mechanism was interpreted by the HOMO/LUMO potentials based on TDDFT calculations.

Two-photon polarity probes built from octupolar fluorophores: Synthesis, structure-properties relationships, and use in cellular imaging

A series of octupolar fluorophores built from a triphenylamine (TPA) core connected to electron-withdrawing (EW) peripheral groups through conjugated spacers has been synthesized. Their photoluminescence, solvatochromism, and two-photon absorption (2PA) properties were systematically investigated to derive structure-property relationships. All derivatives exhibit two 2PA bands in the 700-1000 nm region: a first band at low energy correlated with a core-to-periphery intramolecular charge transfer that leads to an intense 1PA in the blue-visible range, and a second more intense band at higher energy due to an efficient coupling of the branches through the TPA core. Increasing the strength of the EW end groups or the length of the conjugated spacers and replacing triple-bond linkers with double bonds induces both enhancement and broadening of the 2PA responses, thereby leading to cross-sections up to 2100 GM at peak and higher than 1000 GM over the whole 700-900 nm range. All derivatives exhibit intense photoluminescence (PL) in low- to medium-polarity environments (with quantum yields in the 0.5-0.9 range) and display a strong positive solvatochromic behavior (with Lippert-Mataga specific shifts ranging from 15 000 to 27 500 cm-1), triple bonds, and phenyl moieties in the conjugated spacers, thereby leading to larger sensitivities than those of double bonds and thienyl moieties. More hydrophilic derivatives were also shown to be biocompatible, to retain their 2PA and PL properties in biological conditions, and finally to be suitable as polarity sensors for multiphoton cell imaging. Copyright

Redox tunable viologen-based porous organic polymers

The use of an organic donor-acceptor polymer containing a viologen electron acceptor and triarylamine electron donor as a platform in the development of multifunctional materials is presented. The highly robust porous organic polymer (POP) system allows f

Self-assembly of supramolecular fractals from generation 1 to 5

In the seeking of molecular expression of fractal geometry, chemists have endeavored in the construction of molecules and supramolecules during the past few years, while only a few examples were reported, especially for the discrete architectures. We herein designed and constructed five generations of supramolecular fractals (G1-G5) based on the coordination-driven self-assembly of terpyridine ligands. All the ligands were synthesized from triphenylamine motif, which played a central role in geometry control. Different approaches based on direct Sonogashira coupling and/or (tpy-Ru(II)- tpy) connectivity were employed to prepare complex Ru(II)-organic building blocks. Fractals G1-G5 were obtained in high yields by precise coordination of organic or Ru(II)-organic building blocks with Zn(II) ions. Characterization of those architectures were accomplished by 1D and 2D NMR spectroscopy, electrospray ionization mass spectrometry (ESI-MS), traveling-wave ion mobility mass spectrometry (TWIM-MS), and transmission electron microscopy (TEM). Furthermore, the two largest fractals also hierarchically self-assemble into ordered supramolecular nanostructures either at solid/liquid interface or in solution on the basis of their well-defined scaffolds.

Pyran-annulated perylene diimide derivatives as non-fullerene acceptors for high performance organic solar cells

There has been growing interest in the effectual strategy of constructing non-fullerene acceptors for organic solar cells that may overcome the defect of traditional fullerene-based acceptors. Herein, two novel push-pull (acceptor-donor-acceptor) type sma

Efficient and straightforward click synthesis of structurally related dendritic triazoles

A simple, rapid and efficient copper-catalyzed 1,3-dipolar cycloaddition reaction is described for the synthesis of a novel family of twelve triazolic dendrimers structurally related. The products were the result of the click reaction of three cores and four different azides in tetrahydrofuran applying a homogeneous copper catalysis. The reaction intermediates and products were obtained in very good to excellent yields using straightforward and simple work-up procedures. This new family of compounds contain electroactive moieties such as carbazole and triphenylamine which may turn them into excellent candidates for the development of optoelectronic organic materials.

Synthesis, photophysical, electrochemical, and DSSC application of novel donor-acceptor triazole bridged dendrimers with a triphenylamine core and benzoheterazole as a surface unit

Triazole bridged novel donor-acceptor dendrimers with triphenylamine as the core and benzoheterazole as the surface unit have been synthesized by click chemistry via a convergent approach. All the dendrimers exhibited excellent optical and electrochemical