67 results about "2-Phenylpyridine" patented technology

The invention relates to a preparation method of a phosphorescent diode with an electronic transmission layer doped with lithium fluoride. The phosphorescence diode has a eight-layer planar structure that comprises an anode layer, a hole transmission layer, a luminescent layer I, a luminescent layer II, a hole barrier layer, an electronic transmission layer, an electron injection layer and a cathode layer; thris (2-phenylpyridine) iridium is utilized to carry out phosphorescent dye doping on the luminescent layer I and the luminescent layer I so as to form a double luminescent layer; and lithium fluoride is utilized to carry out doping on the electronic transmission layer. The preparation of the phosphorescent diode is carried out in a vacuum vapor plating furnace, wherein the vacuum degree is less than or equal to 0.0004Pa and the temperature in the furnace is from a value by adding 25 DEG C with 2 DEG C to a value by subtracting the 2 DEG C from the 25 DEG C. Processes of heating and sublimation of vapor plating materials, form transformation, vapor deposition and film growth are carried out so as to form a dual-luminescent layer phosphorescent diode with the electronic transmission layer doped with the lithium fluoride, wherein the phosphorescent diode has a thickness of 261.2 nm. Besides, an emission wavelength is 516 nm; a color coordinate is expressed as that x is equal to 0.3151 and y is equal to 0.6054; green lights is emitted; and a maximum value of current efficiency is 39. 03cd / A. Moreover, compared with the prior art, the technology employed in the invention enables luminous efficiency of the diode to be improved by 54%; an initial brightness of a packaging device is 500cd / m <2>; and the device service life is 320h; and the service life of the diode can be improved by 3.57 times.

The invention discloses an iridium complex with four types of different-site and different-quantity fluoro-substituted 2-phenylpyridine serving as main ligands, and bi(bisubstituent phenyl phosphoro)amine serving as an auxiliary ligand. The formula of the iridium complex is shown in the specification. Emission peaks of an EL (electroluminescence) spectrum of an electroluminescence device prepared from the iridium complex are respectively 497nm, 497nm and 495nm; maximum current efficiencies are respectively 43.95cd / A, 66.36cd / A and 37.36cd / A; maximum power efficiencies are respectively 28.51 lm / W, 48.20 lm / W and 19.11 lm / W; maximum power efficiencies are respectively 38827cd / m<2>, 47627cd / m<2> and 40319cd / m<2>. The invention discloses a preparation method of the iridium complex.

The invention relates to iridium complexes having novel main ligands and taking tetraphenylphosphonium imide as an auxiliary ligand. The main ligands in the series of iridium complex molecules are (R-)4-piperidine-2-phenylpyridine or (S-)4-piperidine-2-phenylpyridine derivatives containing chiral phenylpyridine groups. Compared with an iridium complex which is widely researched and reported, the novel iridium complex covered by the invention has the advantages of high light-emitting efficiency, small luminescent quenching effect caused by concentration factors, high electronic mobility, stable chemical properties, easiness for sublimation and purification, and the like; in addition, the device is excellent in performance. By modifying a molecular structure of the main ligand, the luminous intensity and efficiency of the complex can be adjusted within a wavelength range of visible light, which provides convenience for design and production of an organic light emitting diode display and an illuminating light source. Meanwhile, the series of novel iridium complexes introduced in the invention are simple in synthesis method, higher in yield and flexible in chemical modification aiming at the ligands.

The invention discloses an anionic type iridium complex for oxygen sensing, and a preparation method and the application of the anionic type iridium complex. The anionic type iridium complex can be expressed by a general formula: [Ir(C-N)2(CN)2]-nBuN+, wherein a counter ion is a tetrabutyl ammonium ion nBuN+; a C-N ligand is selected from 2-phenylpyridine (ppy), 2,4-difluoro phenylpyridine (dfppy), 2-thiophene-quinoline (thq), 2-phenyl-quinoline (bqu) and 1-phenylisoquinoline (piq), and a molecular structure formula of the C-N ligand is as shown in the description. A preparation process of the anionic type iridium complex is simple and is easy to operate. The anionic type iridium complex can be used in the field of the oxygen sensing and has higher response sensitivity on oxygen and better selectivity; the anionic type iridium complex can also be used in the field of bio-sensing, can be used for carrying out oxygen detection in a cell or a living body and has good biocompatibility; the anionic type iridium complex has the characteristics of long phosphorescence lifetime, large Stokes shift, high light stability and the like, has relatively-sensitive luminous intensity on the oxygen and is a good oxygen probe.

The invention relates to a novel 2-phenylpyridine-platinum (IV) precursor anti-cancer complex as well as a synthesis method and the application of the complex in preparing anti-tumor medicines, relates to a phenylpyridine-platinum complex and aims to obtain an efficient and low-toxicity anti-cancer substance. The novel 2-phenylpyridine-platinum (IV) precursor anti-cancer complex has structural formulae as shown in Pt1 and Pt2. The synthesis method of the complex comprises the following steps: dissolving ligand 2-phenylpyridine-H-PPy or 2-[4-(trifluoromethyl) phenyl] pyridine H-TFPy and a metallic salt K2PtCl6 into a mixed solution of methanol and dichloromethane, and carrying out a coordination reaction, so as to obtain a yellow target product, namely a 2-phenylpyridine-platinum (IV) precursor anti-cancer complex Pt1 or Pt2. The two 2-phenylpyridine-platinum (IV) precursor anti-cancer complexes Pt1 and Pt2 provided by the invention show remarkable in-vitro anti-tumor activity and toxicity selectivity as a whole, in addition are cheap in raw materials, convenient in synthesis and economic, have good potential medicine values and have the potential of being applied to preparation ofvarious anti-tumor medicines.

The invention discloses carbazole group-containing azafluorene orange-light ionic-type iridium (III) complexes including hexafluorophosphoric acid-[di(2-phenylpyridine)]-[9,9-di(9-ethyl carbazole-3-yl)-4,5-diazafluorene] iridium (III) (Ir1), hexafluorophosphoric acid-[di(2-phenylpyridine)]-[9,9-di(9-ethyl hexyl carbazole-3-yl)-4,5-diazafluorene] iridium (III) (Ir2), and hexafluorophosphoric acid-[di(2-phenylpyridine)]-[9,9-di(9-phenylcarbazole-3-yl)-4,5-diazafluorene] iridium (III) (Ir3). When doping concentration of the complex Ir1 is 10%, maximum illumination brightness 907cd / m2 and current efficiency 8.35cd / A are achieved, the maximum peak of an electroluminescence spectrum is observed at 568nm, color coordinates (CIE) x=0.45, and y=0.53, orange light is emitted, and relatively weak efficiency roll off of parts is observed. Electroluminescence devices made from the complex Ir2 and Ir3 possess similar performance.

Provided are: a phosphorescent material which exhibits excellent horizontal orientation properties and so on when formed into a thin film; a process for producing the phosphorescent material with high efficiency; and a light-emitting element produced using the phosphorescent material. A phosphorescent material represented by general formula (1), a process for producing the phosphorescent material, and a light-emitting element produced using the phosphorescent material, each of which is characterized in that the phosphorescent material has a linear conjugated structure, a 2-phenylpyridine ligand, a center metal and a beta-diketone type ligand in the molecule thereof. In general formula (1), R1 and R2, which are terminal substituents, independently represent a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, or the like; a to l and o to s independently represent a hydrogen atom, or the like; M, which is the center metal, represents platinum or the like; m and n, which are the numbers of repeats, independently represent an integer of 0 to 4.

The invention discloses a polypropylene modified functional film and a preparation method thereof. The preparation method of the polypropylene modified functional film comprises the following steps of: (1) immersing a cleaned polypropylene film in a toluene solution of benzophenone bromoisobutyrate, and airing; and putting the product into a transparent quartz vessel, introducing nitrogen and irradiating with an ultraviolet lamp; (2) extracting with dichloromethane and drying to obtain a polypropylene film with a brominated (-Br) surface; (3) putting the product into a colorimetric tube containing a reaction solvent, adding methacrylic acid or a methacrylate monomer, introducing nitrogen, and adding a visible light initiator tris(2-phenylpyridine) iridium; (4) sealing the colorimetric tube, and performing an irradiation reaction under the light of a fluorescent lamp at normal temperature; and (5) cleaning with deionized water, and washing N,N-dimethylformamide or N,N-dimethylacetamide with pure water; and taking out the product and drying to obtain the polypropylene modified functional film. The preparation method disclosed by the invention improves the hydrophilicity and dirt resistance of the film, has a simple process, and is green and environment-friendly and suitable for industrial production.

The invention discloses a cyclometal platinum complex liquid crystal polarized luminescence material and its application, which is a kind of cyclometal platinum complex liquid crystal polarized light emission based on a phenylpyridine derivative liquid crystal material as a cyclometal ligand and acetylacetone as an anion ligand Material. The present invention introduces an alkoxy group at the 4-position of the benzene ring of the traditional ring metal ligand 2-phenylpyridine molecule, and introduces an alkoxymethyl group at the 5-position of the pyridine ring to form a liquid crystal. The C^N ring metal ligand of the double alkoxy chain; or on this basis, on the 3-position of the benzene ring, introduce fluorine to form the C^N of the fluorine-containing double alkoxy chain with liquid crystal properties Cyclometallic ligands, and then using acetylacetone as anionic ligands, a new class of cyclometallic platinum complexes with phenylpyridine derivative liquid crystal materials as cyclometallic ligands was synthesized. Compared with the traditional cyclometal platinum luminescent material in which the functionalized phenylpyridine is the cyclometal ligand, the invention not only has high-efficiency luminescence performance, but also has good liquid crystal performance and polarized luminescence performance. The invention provides a new approach for obtaining organic electrophosphorescent materials with liquid crystal polarization.

The invention discloses an anionic type iridium complex for oxygen sensing, and a preparation method and the application of the anionic type iridium complex. The anionic type iridium complex can be expressed by a general formula: [Ir(C-N)2(CN)2]-nBuN+, wherein a counter ion is a tetrabutyl ammonium ion nBuN+; a C-N ligand is selected from 2-phenylpyridine (ppy), 2,4-difluoro phenylpyridine (dfppy), 2-thiophene-quinoline (thq), 2-phenyl-quinoline (bqu) and 1-phenylisoquinoline (piq), and a molecular structure formula of the C-N ligand is as shown in the description. A preparation process of the anionic type iridium complex is simple and is easy to operate. The anionic type iridium complex can be used in the field of the oxygen sensing and has higher response sensitivity on oxygen and better selectivity; the anionic type iridium complex can also be used in the field of bio-sensing, can be used for carrying out oxygen detection in a cell or a living body and has good biocompatibility; the anionic type iridium complex has the characteristics of long phosphorescence lifetime, large Stokes shift, high light stability and the like, has relatively-sensitive luminous intensity on the oxygen and is a good oxygen probe.

The invention discloses a method for preparing o-trifluoromethyl phenylamine and derivatives thereof. According to the method, phenylamine or a phenylamine derivative serving as raw material reacts with a trivalent iodine reagent compound 2 in a solution under the protection of argon or nitrogen and illumination condition in the presence of tri(2-phenylpyridine)-iridium [Ir(ppy)3] serving as a catalyst to produce o-trifluorophenylamine or derivatives thereof 3, wherein the trivalent iodine reagent compound 2 has a structure shown in the specification. The method is mild in reaction conditions, the amino does not need to be protected, and trifluoromethyl substituted phenylamine or phenylamine derivatives can be directly obtained.