31 results about "Tetraphenylene" patented technology

Provided are a light emitting material comprising one or more tetraphenylethene (TPE) derivatives of formula (1a) with high thermal stability and high solid state quantum yield efficiency, and an electroluminescent or light emitting device such as OLED comprising the same TPE derivatives and a method of preparing the same.

An organic electroluminescent device, which has, between a pair of electrodes, at least one organic layer including a light-emitting layer, in which the organic layer contains a specific tetraphenylene compound, and in which the light-emitting layer contains a phosphorescent material; and a specific tetraphenylene compound that can be used in the device.

The present invention relates to a phenanthro[9,10-b]tetraphenylene derivative and use thereof. The present invention discloses a novel phenanthro[9,10-b]tetraphenylene derivative which is represented by the following formula(I), the organic EL device employing the phenanthro[9,10-b]tetraphenylene derivative as electron blocking material, hole blocking material, electron transport material, phosphorescent host material, or fluorescent host and dopant material can display good performance, wherein L1, L2, Ar1, Ar2, m, p, q and R1 to R3 are the same definition as described in the present invention.

Tetraphenylene triarylamine compounds are disclosed, which are novel triarylamine compounds containing tetraphenylene building block. The compounds can be used as charge transporting materials, hole transporting materials, hole injection materials, electron blocking materials, etc., in an electroluminescent device. These novel compounds have good sublimation characters, and can offer more controllable charge transporting performance and good OLED device performance. Also disclosed are an organic electroluminescent device and a formulation.

Provided is a secondary battery that includes an electrode active material including an organic compound represented by the following General Formula 1.Ar—(OH)n  <General Formula 1>In the General Formula 1, Ar denotes at least one selected from the group consisting of 1,1-binaphthalene, anthracene, triphenylene, tetraphenylene, and pyrene, and is optionally substituted with a substituent. The substituent of Ar is at least one selected from the group consisting of an OH group, a carbonyl group produced through oxidization of the OH group, an alkyl group containing 3 or less carbon atoms, a halogen atom, and an amino group. n denotes an integer in a range of from 2 through 8.

Novel tetraphenylene anthracene compounds are disclosed, which can be used as charge transporting materials, emitters, hosts in an organic electroluminescent device. These novel compounds offer better device performance. Also disclosed are an electroluminescent device and a formulation.

The invention relates to a method for selectively imaging capsulated bacteria with tetraphenylethylene derivatives. The method involved in the present invention includes the design and synthesis of a positively charged compound with aggregation-induced luminescent properties with tetraphenylethenyl as the skeleton, wherein the probe with two positive charges has better membrane penetration ability and can Efficiently stains thick-capsulated bacteria, whereas single-charge probes only stain common bacteria. At the same time, by connecting different electron-donating and accepting groups, the emission spectrum of the probe molecule can be adjusted. This method utilizes the charge number of the compound, the difference in the fluorescence signal and the difference in the ability to penetrate the membrane, and the combination of single and double charges to selectively image the pod. Membrane bacteria, which solves the problem that capsule bacteria are difficult to stain. The compounds involved in the method have good photostability and fluorescence imaging ability; they can be used for bacterial fluorescence imaging and dynamic visual tracking; they can selectively recognize capsulated bacteria, and have potential application value in realizing rapid imaging diagnosis of pathogens.

The invention relates to a chiral tetrastyryltetramine for identification and purity analysis of chiral carboxylic acid enantiomers, and belongs to the technical field of chemical analysis. The chiraltetrastyryltetramine compound has an aggregation induced luminescence (AIE) effect. A preparation method of the chiral tetrastyryltetramine is characterized in that the chiral tetrastyryltetramine isobtained by reacting 3-(tetrachloromethylene)-4-(tetra-p-bromophenyl)tetrastyrene with optically pure chiral amine, and the optically pure chiral amine is optically pure chiral 1-cyclohexylethylamine, 1-cyclohexylpropylamine or 1-cyclopentylethylamine preferably. The prepared chiral tetrastyryltetramine can react with two enantiomers of a series of chiral carboxylic acids to respectively emit fluorescence with different colors, so the chiral tetrastyryltetramine can be used to distinguish the two enantiomers of chiral carboxylic acids; and the wavelength of the fluorescence varies linearly with the percent (ee) of the purity of the enantiomers or the purity of the enantiomers, so the chiral tetrastyryltetramine can be used for high-accuracy and high-sensitivity analysis of the purity of the chiral carboxylic acid enantiomers by the change of the fluorescence wavelength of the chiral tetrastyrene.

The invention discloses a method for preparing AIE-type hyperbranched polymer gold cluster materials through a bottom-up strategy, and its practical application to CO 2 Quantitative detection. The implementation process includes: first introducing tetraphenylethylene-type epoxy compounds (TPE‑epoxides) into disulfide bond-containing hyperbranched polyamide‑amine (ssHPA), thus successfully preparing a disulfide bond-containing hyperbranched polyamide with AIE effect Polyamide-amine (TPE-ssHPA) and acetylated its end to obtain TPE-ssHPA-AC, and finally used it as a template and reducing agent p-chloroauric acid (HAuCl 4 ) were reduced to prepare Au NCs with dual fluorescent signals (TPE‑ssHPA‑AC@Au NCs). Then use CO 2 The combination with the tertiary amine in the hyperbranched polymer structure realizes CO 2 purpose of quantitative testing. The present invention utilizes the simple and fast fluorescence response to realize the detection of carbon dioxide (CO 2 ) Proportional detection of gas, thus avoiding complicated and cumbersome operation steps, long detection time, expensive equipment and loss of experimental consumables.

The invention provides a PES-based flexible white fluorescent polyester and a preparation method thereof, which uses bio-based polybutylene with high brightness, high quantum yield, blue fluorescence emission, and a skeleton containing tetraphenylethylene (TPE) fluorescent units. Ethylene glycol diacid (PES‑ co ‑TPE) as a donor, with poly(trimethylene terephthalate‑terephthalate‑ co ‑Butylene terephthalate (PTBT‑ co ‑TDAT) as the acceptor, and the blend was prepared by melt blending the two. The PES-based flexible white fluorescent polyester of the invention has high quantum yield and brightness, and has potential application value.

Provided are a light emitting material comprising one or more tetraphenylethene (TPE) derivatives of formula (1a) with high thermal stability and high solid quantum yield efficiency, and an electroluminescent or light emitting device such as OLED comprising the same TPE derivatives and a method of preparing the same.

The invention relates to a sterically hindered tetraphenylethylene spirochete emitting dark blue fluorescence and a synthesis method, belonging to the field of chemistry. The invention provides a method for synthesizing a tetraphenylethylene (TPE) helix and splitting it into a single left helix and a right helix. By introducing a substituent methyl group at the two ortho positions of the four phenyl groups of tetraphenylethylene, the benzene ring cannot rotate freely due to the steric hindrance of the methyl group, so that the propeller-type conformation of tetraphenylethylene is fixed. Through chiral high-pressure liquid chromatography (HPLC), making it resolved into TPE spirochete isomers. This sterically hindered TPE helicoid can emit a very difficult to obtain dark blue fluorescence, and its left-helical and right-helical enantiomers can exhibit strong circular dichroism (CD) signals and emit strong dark blue circularly polarized light ( CPL), has the potential to be used as a display material.

This topic concerns the composition and synthesis of fluorescent materials prepared from tetraphenylethylene (TPE) derivatives that exhibit aggregation-induced emission (AIE) properties. Since TPE derivatives have high efficiency, low turn-on voltage, and excellent brightness, the application of TPE derivatives, such as electroluminescent devices, is further considered here. Furthermore, the applications of TPE derivatives showing AIE properties in various fields such as OLEDs, fingerprint and forensic assay techniques, and various other biological and industrial sectors are explored.

The invention discloses a tetraphenylethylene isomer with aggregation-induced luminescence and supramolecular polymerization properties and its preparation method and application. )-1,2-stilbene is added to the dichloromethane solution of 2-ureido-4[1H]-pyrimidinone precursor. The present invention successfully synthesizes uracil-modified cis-trans isomers (Z)-TPE-UPy and (E)-TPE-UPy, and the isomers still retain the aggregation-induced luminescent properties of tetraphenylethylene and the uracil group Supramolecular polymerization ability, through the study of its spatial configuration, it is shown that the uracil structure forms a hole containing a heteroatom on the same side of (Z)-TPE-UPy, so that the Z-isomer can specifically detect mercury(II) ions, so (Z)‑TPE‑UPy can be widely applied to Hg 2+ Among the probes, (E)‑TPE‑UPy has excellent supramolecular polymerization ability and can be used to construct bright fluorescent fibers or photolithographic patterns.

Indolocarbazole tetraphenylene compounds are disclosed. These novel compounds contain tetraarylene or tetraheteroarylene which can be used as charge transporting materials, charge blocking materials, hosts or emitters in an organic electroluminescent device. These novel compounds offer better device performance than comparative compounds that don't contain a tetraarylene or tetraheteroarylene structure. Also disclosed are an electroluminescent device and a formulation.

The present invention discloses a cationic fluorescent probe based on a tetraphenylethylene structure as shown in formula I, R 1 selected from H, OH, R 2 from R 3 selected from H, OH; R 4 selected from H, OH. The cationic fluorescent probe based on the tetraphenylethylene structure of the present invention has an aggregation-induced emission effect, and tests show that it can recognize Al 3+ , Zn 2+ . Therefore, the present invention also discloses the application of the cationic fluorescent probe based on the tetraphenylethylene structure as a metal ion recognition reagent to recognize metal ions.

The present invention relates to the field of electronically controlled fluorescence technology, and provides a diamine compound containing a bis(diphenylamine)-tetraphenylethylene structure. The diamine compound has a structure shown in formula I. The diamine compound provided by the present invention has " 2,2-triphenylamine-tetraphenylethylene” structure, in the polyamide prepared from the diamine compound, the tetraphenylethylene group with aggregation-induced emission effect makes the polyamide have excellent characteristics of bright fluorescence in the solid state, and The polyamide has a higher fluorescence quantum yield; at the same time, the star-shaped tetraphenylethylene and triphenylamine structures in the polyamide can weaken the close packing of the polyamide molecular chain, improve the ion doping rate, and shorten the electrical control of the polymer. Fluorescence response time; In addition, the introduction of electron-pushing groups at the para-position of triphenylamine can effectively reduce the oxidation potential and improve the electrochemical stability of polyamides.