85results about How to "Excellent photophysical properties" patented technology

The invention discloses macrocyclic and cage-like molecules based on biphenylarene and derivatives of the macrocyclic and cage-like molecules as well as synthetic methods and applications of the macrocyclic and cage-like molecules and the derivatives. A series of novel macrocycles are obtained mainly by performing a reaction on bis(2,4-dialkoxyphenyl)arenes (naphthalene, anthracene, pyrene, porphyrin and the like) or tris(2,4-dialkoxyphenyl)arenes (benzene, sym-tribenzobenzene) and paraformaldehyde under the catalysis of a Lewis acid in high yield. In addition, perhydroxybiphenylarenes (quaterphenyl trimer, naphthalene dimer and the like) can be obtained by performing demethylation, a plurality of water-soluble derivatives can be obtained by performing further modification, and the derivatives show good bonding ability to guest molecules (viologen and the like); and moreover, functional groups introduced into the framework make the biphenylarene have excellent adsorption and separationability and photophysical properties. The compounds, derivatives and methods provided by the invention have the following advantages: raw materials of the biphenylarene are commercially available, the synthesis is simple and convenient, the yield is high, and the modification is convenient, so that the compounds and the derivatives have broad application prospects in gas adsorption and separation, performance improvement of light-emitting materials, and adsorption of water-soluble toxic substances.

The present invention concerns complexing agents of formula (I) in which a, b, c, chrom₁, chrom₂, chrom₃, R₃, R₄ and R₅ are as defined in the description. The invention also concerns lanthanide complexes comprising said complexing agents, as well as a method for synthesizing said agents.

The invention discloses a preparation method of a covalent organic framework material formed by alternately connecting two types of octopolar conjugated structure units through carbon-carbon double bonds, and relates to the field of organic framework materials. The preparation method comprises the following steps: step 1, preparing 1, 3, 5-tricyano-2, 4, 6-trimethylbenzene; step 2, preparing 2, 4,6-tri (p-aldehyde biphenyl)-1, 3, 5-triazine; step 3, adding the 1, 3, 5-tricyano-2, 4, 6-trimethylbenzene, the 2, 4, 6-tri (p-aldehyde biphenyl)-1, 3, 5-triazine, anhydrous piperidine and anhydrousN, N-dimethylformamide into a pressure-resistant bottle; step 4, heating and reacting under the protection of argon; and 5, after the reaction is finished, carrying out vacuum filtration to obtain a crude product. The method is simple and easy to implement, and required conventional equipment is easy to control; a solvothermal method is used for one-step synthesis of the covalent organic frameworkmaterial with a high crystalline state, a regular pore channel structure and two types of octupole conjugated structures which are periodically and alternately connected.

The invention belongs to the field of biological detection, and specifically relates to a ruthenium complex fluorescence probe, a preparation method and application. 2-(3-methyl, 4-nitro)phenyl-imidazo[1,10]-phenanthroline is used as a main ligand, and 2,2'-bipyridyl or 1,10-phenanthroline is used as an auxiliary ligand. The invention initially discovers that when G-quadruplex DNA is combined witha nitro-substituted ruthenium complex, four base planes can effectively protect nitro groups on the complex from attack of water molecules, thereby restoring fluorescence of the complex; and when thenitro-substituted ruthenium complex is combined with other single-stranded and double-stranded DNAs, small base planes cannot effectively protect the nitro groups, and the fluorescence of the complexis reduced due to the water molecules, thereby realizing selective detection of the G-quadruplex DNA.

The invention discloses a vinyl bridged bipolypyrrole compound containing an electron donor, pi and an electron acceptor simultaneously (D-pi-A) and a synthesis method of the compound. The structure of the compound is shown as the formula in the description, wherein a substituent group R1 is an electron-donating group such as an alkoxy group, an amino group, a hydroxyl group and the like, and R2 is an electron-withdrawing group such as an acyl group, an aldehyde group, a carboxyl group, an acylamino group, a sulfonic group, a cyano group, a nitro group, a haloform group, a quaternary amine group and the like. The D-pi-A vinyl bridged bipolypyrrole compound is generated finally from a 2,3,3-trimethylindole derivative and a pyrrole-2-carboxaldehyde derivative as raw materials through a Knoevenagel condensation reaction under the action of an organic catalyst. The synthesis method of the compound containing the electron donor, pi and the electron acceptor (D-pi-A) is simple, reaction conditions are easy to control, and the method has universal adaptability. Pi conjugation, band gap and photoelectric property of the material can be regulated and controlled effectively by selecting proper fluorophore, electron donor and electron acceptor.

The invention relates to a preparation method and application of white organic electroluminescent material based on triphenylamine and a rare earth complex. The synthesized novel white light materialsuse the rare earth europium complex as a red chromophore, and a blue-emitting triphenylamine fluorophore is combined in one molecule; and the rare earth organic small-molecular white light materialscapable of emitting high-purity white light are developed by utilizing reasonable matching of red and blue light of the different chromophores. The method provided by the invention is simple and easyto implement, and the obtained white light materials can be used as a backlight source of liquid crystal and solid-state illumination and have wide application prospects.

The invention relates to a semi-sandwich iridium complex having fluorescent properties and containing N-N two-tooth chelated ligand and belongs to the field of chemical pharmaceutical. The molecular structural formula of the iridium complex is as shown in the specification. As the iridium complex is creatively modified with rhodamine B, the whole complex has high anti-cancer activity and mitochondria targeting, has selectivity upon cancer cells, action process visibility and ideal purposes of real-time detection, and has a great significance on medicine targeting research. N-N is adopted as anion ligand for two-tooth chelation, the novel anionic iridium complex with relatively high anti-cancer activity and fluorescent properties can be synthesized, and the complex is good in effect and high in activity in cancer prevention and cell imaging.

The present invention relates to methods of detecting, in a sample, embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells. These methods include providing a sample potentially containing such cells and providing a rosamine derivative compound of the formula (I):

where the rosamine derivative compound selectively produces fluorescent signals for embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells. These methods also include the steps of contacting the sample with the rosamine derivative compound and detecting the presence of the embryonic stem cells, induced pluripotent stem cells, and/or cells undergoing reprogramming to produce induced pluripotent stem cells based on fluorescent signals emitted by the sample following said contacting.

The invention belongs to the technical fields of organic photovoltaic functional materials and biosensing, and in particular relates to a preparation method of a novel boracic heteronuclear iridium complex, and the application of the novel boracic heteronuclear iridium complex in organic electroluminescence and bioimaging field. The material is the heteronuclear complex designed with a novel iridium core including heavy metals and non-metal boron center, and the structural formula is shown in the specification. The martial is simple in synthesis steps and mild in synthesis conditions; and the photophysical property of the complex can be adjusted by changing different cyclometalated ligands and introducing four-coordinated boron, so that the material has great application prospect in the field of organic optoelectronic functional materials, and aspects of bio-labeling and cell-imaging.

The invention discloses a carboxylation chitosan-dithiothreitol-gold nanocluster and a preparation method thereof. Dithiothreitol serves as a reducing agent and a coordination agent, carboxylation chitosan serves as a stabilizer, and a water-soluble gold nanocluster fluorescent material is obtained through one-step synthesis. The novel gold nanocluster fluorescent material preparation method has the advantages that preparation is rapid, simpleness and environmental friendliness are achieved, and the quantum yield is high. The synthesized carboxylation chitosan-dithiothreitol-gold nanocluster shows strong red fluorescence (the maximum emission wavelength is 650 nm), and has the advantages of being long in fluorescence service life (3.7 microseconds and 9.7 microseconds), high in stability,large in Stokes shift (365 nm) and the like.

The invention discloses a method for realizing X-ray detection and imaging by using an organic-inorganic hybrid metal manganese halide. The method is realized on the basis of the special property that a manganese halide has responsiveness to X-rays, the manganese halide can be used as a raw material to prepare a scintillator by using the characteristic, and the obtained scintillator film does not emit light under the sunlight, and can display a green light-emitting effect after being irradiated by ultraviolet rays or X-rays, so that the scintillator film can be applied to the field of X-ray detection and imaging; The compound also has excellent photophysical properties, emits green light in a solid state, and can be used as a green light-emitting material to be applied to preparation of a white light LED. According to the method disclosed by the invention, the conventional application scene of the organic-inorganic hybrid metal manganese halide is widened, the potential performance of the material is further excavated, and the method has important significance on both theoretical research and practical application.

The invention discloses indacenodifuranyl organic solar cell donor materials, and a preparation method and an application thereof, wherein the structural formula of the IDF-based polymers is shown inthe specification, wherein R is n-hexyl, n-octyl, other groups defined in the specification, or other alkane and aromatic hydrocarbons, and n is 8-50. Besides, the series of designed and synthesized polymers PIDFCx have relatively high conjugation degree, relatively high HOMO energy level, relatively good light capturing capability and electrochemical performance; polymers PIDFC2C4 and PIDFC8 of which the side chains are isooctyl and n-octyl are taken as examples, the corresponding cell obtains relatively good photoelectric conversion efficiency under the condition of no post-treatment.

The invention particularly relates to a rhodamine B modified semi-sandwich iridium complex with fluorescence characteristics as well as a preparation method and application thereof, and belongs to thefield of chemical pharmacy. The complex has a molecular structural formula shown in the description. The rhodamine B is creatively used for modifying the iridium complex; the high anti-cancer activity and the mitochondria targeting performance can be given to the whole complex; the selectivity can be realized on cancer cells; the ideal goals of action process visibility and real-time detection performance can be achieved; the important significance is realized on the medicine targeting performance study. The N^N is used as the two-tooth chelation anion ligand; a novel ion type iridium complexwith higher anti-cancer activity and fluorescence characteristics is synthesized; the complex has the good effect and high activity in anti-cancer and cell imaging aspects.

The invention discloses bay-position oxygen-intercalation aza-heptatomic ring 3, 4:9, 10-perylene tetracarboxylic acid butyl acetate and a synthesis method thereof. 1-amino-12-hydroxy-3, 4:9, 10-perylene tetracarboxylic acid butyl acetate is dissolved in an organic solvent, aldehyde substances are added and react at the temperature of 60 DEG C-80 DEG C for 10 hours-60 hours through stirring, the organic solvent is removed after reaction is completed, and the product can be obtained through separation and purification. The reaction condition is mild, the reaction steps are simple, and the yield is high and is above 50%.

The invention relates to a fluorine boron formazan near-infrared-II fluorescent dye, a preparation method and application. Particularly, the fluorescent dye has good photophysical properties, the maximum absorption wavelength of an ultraviolet absorption spectrum in a dichloromethane solution is 770nm, and the fluorescent dye has strong fluorescence emission between 900-1200nm. The fluorescent dye has the advantages of small molecular weight, good biocompatibility, long emission wavelength, high quantum efficiency, good targeting property, large imaging depth and the like, and can be applied to the aspects of biological imaging, fluorescent probes, laser dyes, fluorescent sensors, fluorescent labels, near-infrared photodynamics, photovoltaic cells, tumor treatment and the like.

The invention relates to a graphene-symmetrical ruthenium complex composite film and a graphene self-assembly method by use of a spin-coating method, and belongs to the technical field of molecular self-assembly chemistry. Due to a non-covalent bond effect between a pair of pyrenyl groups in the symmetrical ruthenium complex in the graphene-symmetrical ruthenium complex composite film and the surface of HOPG, the ruthenium complex is immobilized on the surface of the HOPG; the other pair of pyrenyl groups in the symmetrical ruthenium complex is capable of immobilizing the graphene on a ruthenium complex monomolecular film by virtue of spin coating. Firstly, the self-assembly of the ruthenium complex is performed on an HOPG substrate to prepare the monomolecular film; secondly, a graphene dispersion liquid is prepared; finally, the graphene is immobilized on the ruthenium complex monomolecular film by virtue of spin coating to prepare the graphene-symmetrical ruthenium complex composite film. The prepared film has a lot of advantages, such as excellent mechanical and chemical stability, and controllable film thickness.

The embodiments of the invention provide a pentamethine cyanine dye and a preparation method thereof and relate to the technical field of material preparation. The pentamethine cyanine dye has a structure with a general formula I as shown in the description, wherein X and Y are O, S, C(CH3)2 or NR6; R1 is (CH2)nR7 or (CH2)mC6H4R7; R2 and R3 are respectively any one of H, halogen, (CH2)nR8, CH2C6H4R8, SO3H, SO3<->, OCH3, SCH3, benzyloxy group, NO2, O(CH2)nR8, OCH2C6H4R8 and CN; R4 and R5 are respectively any one of CH3, CH2CH3, CH2C6H5, CH2C6H4F, (CH2)nR8 and CH2C6H4R8; and both m and n are integers from 1 to 18.

The invention relates to a fluorine-containing oligomeric silsesquioxane modified hyperbranched copolymer, which contains 0.9 to 19.9 percent by mole of spiro [3.3] heptane-2, 6-dispirofluorene branched central structure unit, 80 to 99 percent by mole of fluorine-containing oligomeric silsesquioxane modified fluorene monomer unit and 9,9-Dioctyl fluorene monomer unit linear random arranged hyperbranched chain structural unit 0.01 to 0.1 percent by mole of the 4, 7-bis (5-thienyl)-2, 1, 3-benzothiadiazole dimming group structural unit, and the number-average molecular weight Mn of the 4, 7-bis (5-thienyl)-2, 1, 3-benzothiadiazole dimming group structural unit is 4000-15000. The hyperbranched copolymer is used as an organic light-emitting material to be applied to an organic light-emitting device, stable white light can be emitted, the interface problem of the device is optimized, the stability of the device is improved, and the service life of the device is prolonged.

The invention relates to the technical field of organic synthesis, in particular to a N-(5-[1,3,4]diazole-2-yl-2H-pyrazole-3-yl)-carboxamide derivative and a microwave hydrothermal synthesis method thereof, and further relates to application of the compound. A series of basic raw materials such as amine, 2,3-dicyan-opropionate, alcohol, acyl halide and the like are used for synthetizing of pyrazolecarbonitrile, pyrazolecarbonitrile is subjected to esterification, hydrazide reaction and amidation and reacts with a cyclization agent by the microwave hydrothermal synthesis method so as to obtainN-(5-[1,3,4]diazole-2-yl-2H-pyrazole-3-yl)-carboxamide derivative (including thiadiazole and oxadiazole). The derivative has good biological activity, can inhibit various bacterial stains, and has high activity in terms of bacterial resistance and insect killing; in terms of chemical structure, the derivative, according with the general formula, is synthetized, has great variety of active groups and excellent photo-physical properties, has multiple functions in the fields such as photoelectricity, medicines, pesticides, bacteriostat, diminish inflammation and virus protection, and accordinglyhas high development and application value.

The invention discloses an alkenyl side chain conjugated indacenodifuranyl polymer material as well as a preparation method and an application thereof. The structural formula of the alkenyl side-chainconjugated indacenodifuranyl polymer material is shown in the specification, wherein R is n-hexyl, n-octyl, n-hexadecyl, n-hexadecyl, or other alkanes and aromatic hydrocarbons, and n is 9-20; furthermore, the series of polymers PIDF-TCx-BT designed and synthesized by the invention have a relatively high conjugate plane, a relatively high HOMO energy level, relatively wide light capturing capability and a relatively good electron energy level; wherein polymers PIDF-TC6C8-BT and PIDF-TC16-BT of which the side chains are 2-hexyldecyl and hexadecyl are taken as examples, the tests find that thephotoelectric conversion efficiency of a battery prepared from the alkenyl side chain conjugated indacenodifuranyl polymer material prepared by the invention can be greater than 7% under optimizationtreatment, and the product has great photovoltaic potential.

The invention relates to a ruthenium complex monomolecular film and a method for preparing the ruthenium complex monomolecular film on HOPG (highly oriented pyrolytic graphite), and belongs to the technical field of molecule self-assembling chemistry. Pyrenyls in a ruthenium complex in a ruthenium complex monomolecular film and the HOPG with a Pi-electronic environment act with each other through Pi-Pi, and the two pyrenyls of the ruthenium complex are fixed on an HOPG interface; the general formula of the ruthenium complex is [Ru(Py4G2MeBip2)](PF6)2. The method comprises the steps of preparing a ruthenium complex solution, then performing surface treatment on the HOPG, and finally self-assembling the ruthenium complex on an HOPG substrate by a spinning method or an immersion method to prepare the ruthenium complex monomolecular film. The ruthenium complex monomolecular film is prepared by two methods, so that the prepared ruthenium complex monomolecular film has the advantages that the mechanical and chemical stability is high, and the thickness of the molecular film can be controlled and the like.