107results about How to "Increased conjugated system" patented technology

The invention discloses an organic luminescence compound and an organic luminescence device thereof, and relates to the technical field of an organic photoelectric material. A conjugated system of theorganic luminescence compound is great, so that higher hole mobility is realized; good hole transmission performance is shown. In addition, the organic luminescence compound provided by the inventionalso has good thermal stability and solubility; the film forming of the material is facilitated. The organic luminescence device using the organic luminescence material as an organic matter layer hasthe advantages that the driving voltage is lower; the luminescence efficiency and luminescence brightness are high; the service life is longer.

The invention provides an optical resin monomer material. The optical resin monomer material consists of the following components in percentage by weight: 10 to 20 percent of 1,2-bi(2- sulfhydry ethylthio)-3-sulfhydryl propane, 15 to 25 percent of isocyanate compound, 5 to 10 percent of alpha-methyl methacrylate, 10 to 15 percent of tetrabromo bisphenol A, 20 to 30 percent of 2-hydroxyl-3-phenoxycrylic acid propyl ester, and 10 to 20 percent of styrene compound. The optical resin monomer material can be used for producing an ultrathin type high-refractive index optical resin lens of which therefractive index is 1.60 by the conventional process. Compared with the prior art, the invention provides the optical resin monomer material, which can be used for producing the high-refractive indexoptical resin lens and ensure the produced lens is thinner and has high thermal resistance and visible-light transmittance.

The invention provides an erasable bluish dark writing liquid. The writing liquid mainly comprises the following components: alpha-naphtholphthalein, phenolphthalein, sodium hydroxide, ethanol, formaldehyde, a thickener, a surfactant and distilled water. The writing liquid is prepared by a complementary color principle, and has no toxicity, no penetrating odor and no corrosion. The writing liquid can not only be applied to a teaching board but also be applied to water-color brushes for children. The preparation process is simple and the writing liquid has convenient use. The writing liquid can be erased by water solution, and is a writing liquid without environmental pollution and harm to human bodies.

The invention discloses fluorene derivative and an organic luminescent device thereof and relates to the technical field of organic photoelectric materials. The fluorene derivative disclosed by the invention has a larger conjugated system, so that the fluorene derivative has a higher hole mobility and shows better hole transmission performance. In addition, the fluorene derivative disclosed by theinvention further has better thermal stability and solubility, so that material film formation is facilitated. When the fluorene derivative is utilized as an organic luminescent device of an organismlayer, the fluorene derivative has lower driving voltage and higher luminous efficiency and luminance and further has longer service life.

The invention provides an arylamine compound and an organic luminescent device thereof, and relates to the technical field of organic photoelectric materials. The arylamine compound is obtained by connecting substituted or un-substituted carbazole, benzothiophene and a thick derivative of benzofuran onto an arylamine main body, so that with cavity transmission ability is relatively strong, good thermal stability is good, good film-forming property is good and synthesis is simple and easy easy-to to-operate synthesis. The arylamine compound can be applied to the organic luminescent device as acovering layer of or a cavity transmission layer, so that the problem that carrier transmission in the organic luminescent device is unstable and light out-coupling efficiency is low in the organic luminescent device can be effectively solved; and the organic luminescent device has the advantages of being high in luminescent efficiency and long in service life.

The invention discloses a photochromic nano composite microsphere and an application thereof. The photochromic composite microsphere has a three-layer composite core-shell structure, an inner core isa zinc sulfide mesoporous nano microsphere, a middle layer is a photochromic layer formed by a spiropyran compound, and an outer layer is polyurethane; and the outer diameter of the composite microsphere is 50-350nm, wherein the diameter of the zinc sulfide mesoporous nanosphere is 30-250nm, the thickness of the middle layer is 5-25nm, and the thickness of the outer shell is 5-25nm. The photochromic composite microsphere provided by the invention can be used to prepare a photochromic coating or doped into a resin optical material to prepare a photochromic material. The material can be changedfrom colorless to colored under the irradiation of ultraviolet rays, and after the ultraviolet rays disappear, the material can be quickly faded into colorless, and has the advantages of strong fatigue resistance, good stability, a fast color change speed and the like.

The invention relates to a bistriazene compound, in particular to 4, 4'-bis[5, 6-dichloro-2-benzothiazolylazo-amino]biphenyl-3, 3'-disulfonic acid and a preparation method and application thereof. The invention solves the problem existing in the prior art that a reagent for detecting heavy metal ions has nonideal sensitivity. The molecular structural formula of the 4, 4'-bis[5, 6-dichloro-2-benzothiazolylazo-amino]biphenyl-3, 3'-disulfonic acid is shown as follows. The 4, 4'-bis[5, 6-dichloro-2-benzothiazolylazo-amino]biphenyl-3, 3'-disulfonic acid is used for the detection of the heavy metal ions, has the advantages of good selectivity, high sensitivity, and steady performance, can be used for fluorescence detection of Ni (II) in alkaline medium in the presence of a triton surfactant, and can also be used as a visualization reagent for photometric analysis.

The invention provides a spiropyrane photochromic coating and a preparation method thereof. The coating contains a polyurethane/spiropyrane/zinc sulfide composite multilayer photochromic material; aninner core of the coating is a zinc sulfide mesoporous nano-microsphere; an intermediate layer of the coating is a photochromic layer formed by a spiropyrane compound; a shell of the coating is polyurethane; the outer diameter of the composite microsphere is 50-350nm; the diameter of the zinc sulfide mesoporous nano-microsphere is 30-250nm; the thickness of the intermediate layer is 2-25nm; the thickness of the shell is 5-25nm. The photochromic coating prepared by the method can be used as a photochromic material or a surface color-changing layer of an optical lens; the coating is capable of changing from colorless to colored under irradiation of ultraviolet light, is also capable of rapidly fading to colorless after the ultraviolet light disappears, and has the advantages of high fatigueresistance, high stability, rapid color-changing speed and the like.

The preparation process of high reflectivity optical resin includes the following steps: mixing 1, 3-di(glyceryl acrylate) glycerin, diallyl terephthalate and dipropenyl styrene glycol bicarbonate via stirring under room temperature; adding a-methyl styrene, styrene and bisphenol A tetrabromide successively; adding 2-hydroxy-3-phenoxy propyl acrylate and isocyanate compound while stirring for 2 hr; and adding ultraviolet absorbing agent in 0.3 % and blue pigment in 0.2-1 ppm. The said preparation process is simple, and has good controllability and repeatability, mild reaction condition, no pollution, low cost and high product surface hardness.

The invention belongs to the field of organic light-emitting materials, and particularly relates to a nitrogen-containing compound and an electronic element and an electronic device using the same, and the nitrogen-containing compound has a structure as shown in a chemical formula 1. When the nitrogen-containing compound is applied to the organic electroluminescent device, the performance of the device can be effectively improved.

The invention provides a synthesis method for a covalent organic framework material with an imine structure. The method comprises the following steps: using thiosemicarbazide and 1,3,6,8-tetrabenzoylpyrene as raw materials, using o-dichlorobenzene and N,N-dimethylacetamide as solvents, and using acetic acid as a catalyst, synthesizing to obtain TSC-Py COF through a solvothermal method. In DMF solution of the TSC-Py COF material, metal ion solutions of Ag<+>, Co<2+>, Fe<3+>, Cr<3+>, Pb<2+>, Zn<2+>, Na<+>, Mg<2+>, Mn<2+>, Ca<2+>, La<3+>, Ni<2+>, Al<3+>, Cu<2+>, Ce<3+>, Ba<2+>, K<+>, Cd<2+>, Pr<3+>, Fe<2+>, and Hg<2+> are respectively added. Only if mercury ions are added, the TSC-Py COF solution has the good fluorescence enhancement effect, so the covalent organic framework material can beused for fluorescence-detecting the metallic mercury ions.

The invention discloses a star molecule of truxene-perylene-series derivative and a preparation method thereof, belonging to the fields of organic chemical industry and fine chemistry industry. The star molecule mainly comprises truxene-perylene imide, truxene-perylene tetraformic ether and truxene-perylene anhydride. The preparation method comprises the following steps of: undergoing a coupling reaction on 2,7,12-triboric acid ester-5,5,10,10,15,15-hexaalkyl-truxene serving as a raw material and 1-bromine-3,4,9,10 perylene imide to obtain a coupling product of truxene and perylene imide, and undergoing a closed ring reaction under illumination to obtain a star molecule of the truxene-perylene imide; undergoing a coupling reaction on 2,7,12-triboric acid ester-5,5,10,10,15,15-hexaalkyl-truxene serving as a raw material and 1-bromine-3,4,9,10 perylene tetraformic ether to obtain a coupling product of truxene and perylene tetraformic ether, and undergoing a closed ring reaction under illumination to obtain a star molecule of the truxene-perylene tetraformic ether; hydrolyzing the truxene-perylene tetraformic ether to obtain truxene-perylene anhydride; and reacting the truxene-perylene anhydride with organic amine to generate truxene-perylene imide. By adopting the series of compounds, the conjugated systems of perylene imide and the like are expanded remarkably, and a novel material is provided for the research of organic semiconductors.

The invention discloses an all-alkyl substituted triindenyl-looped trimeric-indole derivative, which is characterized in that indene and trimeric indole are linked to form a star-shaped highly-symmetrical trimeric-indole derivative with a larger conjugated system; and the trimeric-indole derivative belongs to the technical field of organic electroluminescent materials. The invention also relates to a preparation method of the all-ethyl substituted triindenyl-looped trimeric-indole derivative, which comprises the following steps of: by using isatin as a raw material, introducing three n-hexylsto 5, 10 and 15 bits to improve the dissolvability of the trimeric indole after synthesizing the trimeric indole as an intermediate, then introducing three 2-iodophenyl formoxyls to 3, 8 and 13 bits through Friedel-Crafts acylation reaction, then synthesizing a triindone-looped trimeric-indole derivative by utilizing intramolecular palladium-catalyzed C-H aryl-coupling reaction, and then reducingand alkylating to obtain the all-alkyl substituted triindenyl-looped trimeric-indole derivative. A new path is provided for exploring novel organic electroluminescent materials by the compound disclosed by the invention.

The invention discloses a metal complex and an OLED (Organic Light Emitting Device) thereof, and relates to the technical field of organic photoelectric materials. The metal complex has a structure asshown in a formula (I), wherein an electron-rich dinitrogen coordination structure in the structure of the metal complex is beneficial for stabilizing central trivalent metal cations, and meanwhile,electron cloud distribution on metal iridium can also be affected, so that great influence to the photoelectric properties of a whole complex molecule can be generated; a quaternary ring formed by a ligand of the dinitrogen coordination structure and metal has stronger rigidity and is beneficial for reducing unnecessary vibration energy loss and realizing high-efficiency luminescence property. Byregulating substituent groups, the metal complex has better thermal stability and chemical property; by preparing the metal complex into a device and particularly using the metal complex as a doping material, the device has the advantages of low driving voltage and high luminous efficiency and is superior to a commonly used OLED.

The present invention relates to a compound, a display panel and a display device, the compound has a structure represented by a formula I, the compound uses a spiro structure as a non-conjugated connection unit and a boron-containing group as an electron accepting group, and the groups are used as building blocks to obtain a light emitting compound having a narrower half-peak width and a higher color purity. A bipolar compound can be obtained by connecting an electron-donating group to the boron-containing spiro structure, and the bipolar compound can be used as a thermal activation delayed fluorescence material as a luminescent layer material, especially a doping material, and as a fluorescent host material or a phosphorescent host material. When the compound provided by the invention isapplied to an organic light-emitting device, low driving voltage and high light-emitting efficiency can be realized.

The invention discloses a two-photon fluorescent probe of a benzoindole derivative and a preparation method and an application thereof. A structural formula of the two-photon fluorescent probe of the benzoindole derivative is shown in description. The two-photon fluorescent probe has the advantages that a benzoindole group with higher reaction activity and good biocompatibility is used as a main body, and reacts with 4-pyridylaldehyde, so that an indole derivative L with a phi-conjugated system is concisely and efficiently prepared, and is subject to anion identification and activity screening; the results show that the indole derivative L has the property of singly identifying HSO3-, and the single-photon fluorescence and two-photon fluorescence are obviously changed before and after identification; cell experiments show that when the indole derivative L is used as the two-photon fluorescent probe, the indole derivative L can penetrate through a cell membrane, so as to detect the cytoplasm exogenous H3O3-.

The invention relates to an organic electronic material containing a phenanthrozole compound as well as a preparation method and application of the organic electronic material. The structure is shown as a structural formula (I), wherein Z1 is one of -N=, -NR10, -O- and -S-; Z2 is one of -N=, -NR11, -O- and -S-; at least one of Z1 and Z2 is -N=; R1, R10 and R11 are independently selected from C1-C12 alkyl, C6-C30 substituted or unsubstituted aryl, C3-C30 substituted or unsubstituted heteroaryl, and C3-C30 substituted or unsubstituted heteroaryl; and R3 is one of hydrogen, deuterium, halogen, a hydroxyl group, a trifluoromethanesulfonate group, a C1-C12 alkyl group, a C6-C30 substituted or unsubstituted aryl group, and a C3-C30 substituted or unsubstituted heteroaryl group.

The invention relates to a photochromic coating liquid and applications thereof. The coating liquid contains a polyurethane/spiropyran/zinc sulfide compound multilayer photochromic material, the kernel of the polyurethane/spiropyran/zinc sulfide compound multilayer photochromic material is zinc sulfide mesopore nanometer microspheres, a middle layer of the polyurethane/spiropyran/zinc sulfide compound multilayer photochromic material is a photochromic layer made from a spiropyran compound, and a shell is made from polyurethane; the outer diameter of each compound microsphere is 50-350nm, wherein the diameter of each zinc sulfide mesopore nanometer microsphere is 30-250nm, the middle layer is 5-25nm thick, and the shell is 5-25nm thick. The coating liquid can be used for preparing a photochromic coating; the photochromic coating can be changed to be colorful from being colorless under the irradiation of ultraviolet rays, and also can be rapidly faded to be colorless after the ultraviolet rays disappear, thus having the advantages of being strong in anti-fatigue property, good in stability, rapid in color changing speed, and the like.

The invention discloses an iron complex for photoacoustic imaging and photothermal therapy and a preparation method and application of the iron complex. The iron complex is a complex FeL2 synthesizedby coordination of a sulfonic triphenylamine terpyridyl functional ligand and Fe. By introducing sulfonic triphenylamine to a terpyridyl ligand, the biocompatibility and water solubility of the complex are improved, the intramolecular electron donating capacity is enhanced, a conjugated system is increased, intramolecular charge transfer is facilitated, and the optical property is optimized. Research results show that the complex has an excellent photoacoustic imaging effect and relatively high photothermal conversion efficiency and is a photoacoustic imaging contrast agent which can be used for photothermal therapy.

The invention discloses an anti-blue ray/color-changing bifunctional optical resin material and a preparation method thereof. The bifunctional optical resin material is composed of an anti-blue ray optical resin material and a photochromic coating coated on the material surface. The anti-blue ray optical resin material is prepared by dispersing polyurethane/light absorber/titanium oxide nanocomposite microspheres in a polyurethane optical resin. The nanocomposite microspheres are of a three-layer composite core-shell structure, the core refers to titanium oxide nano microspheres, the middle layer refers to a light absorber, and the shell is polyurethane. The spectrum blocking range of the anti-blue ray optical resin material is expanded from an ultraviolet spectrum region to a blue-ray spectrum region, and the anti-blue ray optical resin material has distinguished absorption performance on blue rays of different bands on the premise of ensuring high transmittance. The anti-blue ray optical resin material and the photochromic coating are subjected to matching and function integration, the transmittance can be automatically regulated according to light intensity, darkness control isrealized by selectively transmitting beneficial light and cutting off harmful light, and light transmission is performed according to needs.

The invention provides a fluorine derivative and an organic electroluminescent device thereof, and relates to the technical field of organic photoelectric materials. The fluorine derivative is formedby connecting a strong electron-withdrawing group on one side of a fluorene main structure through double bonds and connecting a triphenylene structure on the other side, has good electron transport ability and hole transport ability, is capable of effectively improving the injection rates and exciton recombination rates of current carriers in light emitting layers, is good in thermal stability, good in film formation property, simple to synthesize and easy to operate, can be applied in an organic electroluminescent device to serve as a light-emitting layer main body and/or a hole blocking layer, and is capable of effectively solving the problem that organic light emitting devices are unbalanced in current carrier transport, low in luminous efficiency, short in service life and unstable incolor of light; and the organic electroluminescent device has the advantages of being low in driving voltage, high in luminous efficiency and long in service life.

The invention relates to a preparation method of a spiropyrane type photochromic nano-composite microsphere. The prepared material prepared by the method is of a three-layer compound core-shell structure, wherein an inner core is a zinc sulfide mesoporous nano microsphere, an intermediate layer is a photochromic layer composed of spiropyrane type compounds, and a shell is polyurethane; the outer diameter of the composite microsphere is 50-350nm, the diameter of the zinc sulfide mesoporous nano microsphere is 30-250nm, the thickness of the intermediate layer is 5-25nm, and the thickness of theshell is 5-25nm. The prepared photochromic composite microsphere can be added into a photochromic coating or resin optical material as a photochromic material. The prepared material can become coloredfrom colorless under ultraviolet irradiation condition, also can be rapidly faded to be colorless after ultraviolet rays disappear and has the advantages of strong fatigue resistance, good stability,high discoloring speed and the like.

The present invention relates to the technical field of organic synthesis, and specifically relates to a new bay area cyclization synthesis method of perylene bisimide derivatives, which uses bay area silynylated perylene bisimide as a raw material, and obtains the target product through two-step reactions. The product expands the derivatization reaction of perylene bisimides, ensures the planar structure of perylene bisimides to the greatest extent, provides an effective ring expansion method, and has the advantages of simple synthesis steps, easy-to-obtain raw materials, and subsequent coupling reactions. The advantages such as high efficiency, the subsequent coupling reaction broadens the application of perylene compounds.

The invention discloses an organic compound containing a diarylamine substituted spirobifluorene structure, wherein the organic compound has a structure represented by a chemical formula (1). The compound has high glass transition temperature, appropriate HOMO and LUMO energy levels, high Eg (energy gap) and high thermal stability, can sublimate under the conditions of no decomposition and no residue, has a good application effect in OLED devices, and can effectively improve the light emitting performance of the devices and prolong the service life of the devices.

The invention discloses a near-infrared fluorescent molecular probe and a synthesis method and application thereof. The structure of the near-infrared fluorescent molecular probe is represented by a formula (II) shown in the description. The synthesis method comprises the steps: subjecting 2,3,3-trimethyl-3H-indolin-5-sulfonate to a reaction with meta-fluorobenzyl bromide in an organic solvent under the protection of inert gas, so as to obtain a compound represented by a formula (I) shown in the description; subjecting the compound represented by the formula (I) to a reaction with 2-chloro-1-formyl-2-hydroxymethylcyclohexene in an organic solvent under the protection of inert gas, thereby obtaining the compound represented by the formula (II). The invention further discloses application of the near-infrared fluorescent molecular probe in living cell imaging. According to the near-infrared fluorescent molecular probe with a novel structure, disclosed by the invention, the fluorescence intensity can be enhanced, and the cell imaging effect is improved.