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Upstream product

• 122-39-4 diphenylamine 
• 19654-19-4 2-(4-bromophenyl)benzothiazole 
• 1122-91-4 4-bromo-benzaldehyde 
• 137-07-5 2-amino-benzenethiol 
• 4181-05-9 4-(diphenylamino)benzaldehyde 
• 95-16-9 1,3-Benzothiazole 

Relevant academic research and scientific papers

Tris-heteroleptic cyclometalated iridium(III) complexes with ambipolar or electron injection/transport features for highly efficient electrophosphorescent devices

A series of tris-heteroleptic phosphorescent cyclometalated IrIII complexes with two different cyclometalating ligands and one ancillary ligand was synthesized. Through manipulation of the electronic features of individual cyclometalating ligan

A new highly selective fluorescent sensor based on a novel fluorophore for cyanide and its applications in bioimaging

A novel highly active fluorescence chemical sensor (TBI) for CN? was synthesized based on triphenylamine–benzothiazole as a new fluorophore, and was used for the first time as a fluorophore for detection of CN?. Fluorescence quantum yield of the probe clearly increased when using triphenylamine–benzothiazole as the group. The probe possessed good selectivity towards CN? and had anti-interference ability over common ions. After adding CN?, the UV–visible spectrum of TBI changed clearly and underwent a dramatic colour change from red to colourless, which could be observed clearly by the naked eye. The limit of detection for CN? was calculated to be 2.62 × 10?8 M, which was well below the WHO cut-off point of 1.9 μM. The novel probe displayed fast sensing of CN?. The detection mechanism was a nucleophilic addition reaction between CN? and a carbon atom –C = N– in indole salt. The π-conjugation and intramolecular charge transfer (ICT) transition in the TBI molecule were destroyed by this addition, which resulted in a change of fluorescence before and after the addition of CN?. The mechanism was verified using theoretical calculation, 1H NMR titration, and mass spectra. In addition, the probe showed low cytotoxicity and could be used for biological imaging in HeLa cells.

Tertiary amine derivatives and organic electroluminescent device including the same

A UV-region high-energy external light source is effectively absorbed to minimize damage to organic materials in the organic electroluminescent device. 1 Is a cross-sectional view of an organic electroluminescence device according to the present invention. O-2 electrode 1 Or more organic material layers disposed between the (2) and (1) th electrodes. A capping layer is included. The organic material layer and/or the capping layer may include the 1 st amine derivative represented by Formula 3. Chemical Formula 1. Wherein each substituent in Formula 1 is as defined in the description of the invention.

A class of asymmetric V-shaped organic dye sensitizers, preparation method and applications thereof

The invention discloses a class of asymmetric V-shaped organic dye sensitizers, wherein the molecules adopt triphenylamine and phenothiazine as electron donating groups, a long carbon chain is introduced into the N atom of the phenothiazine, benzothiazole

Triphenylamine-based fluorescent NLO phores with ICT characteristics: Solvatochromic and theoretical study

The static first and second hyperpolarizability and their related properties were calculated for triphenylamine-based “push-pull” dyes using the B3LYP, CAM-B3LYP and BHHLYP functionals in conjunction with the 6-311+G(d,p) basis set. The electronic coupling for the electron transfer reaction of the dyes were calculated with the generalized Mulliken-Hush method. The results obtained were correlated with the polarizability parameter αCT, first hyperpolarizability parameter βCT, and the solvatochromic descriptor of ?γ? SD obtained by the solvatochromic method. The dyes studied show a high total first order hyperpolarizability (70–238 times) and second order hyperpolarizability (412–778 times) compared to urea. Among the three functionals, the CAM-B3LYP and BHHLYP functionals show hyperpolarizability values closer to experimental values. Experimental absorption and emission wavelengths measured for all the synthesized dyes are in good agreement with those predicted using the time-dependent density functional theory. The theoretical examination on non-linear optical properties was performed on the key parameters of polarizability and hyperpolarizability. A remarkable increase in non-linear optical response is observed on insertion of benzothiazole unit compared to benzimidazole unit.

Study of the influences of molecular planarity and aluminum evaporation rate on the performances of electrical memory devices

In this paper, two conjugated small molecules (CZ-BT and TPA-BT) were designed and successfully synthesized to investigate the influence of different electron donor moieties on thin-film morphology and their electrical memory device properties. Current-vo

Novel phosphorescent polymers containing both ambipolar segments and functionalized IrIII phosphorescent moieties: Synthesis, photophysical, redox, and electrophosphorescence investigation

Two series of novel phosphorescent polymers have been successfully synthesized by the Suzuki cross-coupling reaction among functionalized phosphorescent IrIII ppy-type (ppy = 2-phenylpyridine anion) complex monomers with hole-injection/transpor

Thiocyanate-free ruthenium(II) cyclometalated complexes containing uncommon thiazole and benzothiazole chromophores for dye-sensitized solar cells

Four novel thiocyanate-free ruthenium(II) complexes based on thiazole and benzothiazole cyclometalating ligands were synthesized, characterized and applied in dye-sensitized solar cells (DSSCs). Their photophysical, electrochemical, thermal and photovoltaic properties have been investigated and the experimental results can be correlated well with the computational results obtained by density functional theory (DFT) calculations. Based on the DFT results, the HOMO of the complexes is localized on the electron-donating carbazole or triphenylamine unit whereas the LUMO mainly lies on 4,4′-dicarboxyl-2,2′-bipyridine. These dyes exhibit good thermal stability with the onset decomposition temperature at 5% weight-loss (T d) over 360 C. For the DSSC device using the dye with the benzothiazole/carbazole-based cyclometalating ligand, the power conversion efficiency (η) can reach up to 2.98%, with a short-circuit photocurrent density (Jsc) of 6.25 mA cm-2, an open-circuit photovoltage (Voc) of 0.659 V and a high fill factor (ff) of 0.724 under illumination of an AM 1.5 solar cell simulator.

Iron-catalyzed arylation of benzoazoles with aromatic aldehydes using oxygen as oxidant

An iron-catalyzed arylation of azoles with aromatic aldehydes using oxygen as oxidant has been discovered. The reaction proceeded well for a range of different substrates under oxidative conditions. The Royal Society of Chemistry.