4920 results about "Chemical formula" patented technology

The invention relates to the technical field of fluorescence sensing development, in particular to a Cd (II)-based metal organic framework crystalline material as well as a preparation method and application thereof. The chemical formula of the Cd (II)-based metal organic framework crystalline material is {[Cd3 (H2O) 2 (DMA) 2 (5-CMOIA) 2]. 6 / 5H2O} n, the organic framework material is characterized by an X-ray single crystal diffractometer, and the result shows that the organic framework material is crystallized in a triclinic system P-1 space group, the asymmetric unit of the organic framework material is composed of three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions, three Cd (II) ions and three The complex is composed of two deprotonated (5-CMOIA) 3-ligands, two coordinated DMA solvent molecules, two coordinated water molecules and six fifths of crystal water molecules. The solid fluorescence spectrum of the Cd (II)-based metal organic framework crystalline material is measured, the fluorescence response of the Cd (II)-based metal organic framework crystalline material to metal ions in a solution is explored, and the result shows that the Cd (II)-based metal organic framework crystalline material can effectively recognize Hg < 2 + > from different ions and can be applied to the field of fluorescence sensing.

A positive electrode plate includes a positive electrode current collector and a positive electrode active material layer disposed on at least one surface of the positive electrode current collector, where the positive electrode active material layer includes two respective positive electrode active materials represented by chemical formula (1) and chemical formula (2): Li1+xNaaCo1+yAlzMgpTiuMvO2+w (1), where in chemical formula (1), M includes at least one of Zr, La, or Y, −0.1<x<0.1, 0<a<0.005, −0.05<y<0.05, 0.01<z<0.05, 0.001<p<0.01, 0<u<0.005, 0<v<0.005, and −0.05<w<0.05; and Li2+rNasN1+qO2+t (2), where in chemical formula (2), −0.2<r<0.2, 0≤s≤0.05, −0.1<q<0.1, −0.05<t<0.05, and N includes at least one of Ni, Cu, Mn, Fe, or Co. Such a positive electrode plate can achieve a high specific discharge capacity of the electrochemical apparatus, thereby increasing high-temperature cycling performance and energy density of the electrochemical apparatus.

Monoorgano tin trialkoxide compounds having chemical formula R'SnX3 and containing less than about 5 mol% R'2SnX2are described. R' is an optionally substituted organic substituent having about 1 to about 20 carbon atoms and each X is independently ORf, wherein Rf is a fluorinated organic substituent having about 1 to about 20 carbon atoms. Methods for synthesizing and purifying these compounds are also provided. The monoorgano tin compounds may be used for the formation of high-resolution EUV lithography patterning precursors and are attractive due to their high purity and minimal concentration of diorgano tin impurities.

The invention discloses red fluorescent transparent ceramic for laser display and a preparation method of the red fluorescent transparent ceramic. The chemical formula of the transparent ceramic is (K0.99-yLiy) 2 (Si1-xMx) F6: 0.02 Mn < 4 + >, M = Ge or Ti, x is the mole percent of M doping, x is greater than or equal to 0.01 and less than or equal to 0.15, y is the mole percent of Li doping, and y is greater than or equal to 0.03 and less than or equal to 0.45; the preparation method comprises the following steps: preparing nanoscale fluoride powder by adopting a hydrothermal synthesis method, and then preparing the fluorescent transparent ceramic by adopting a hot pressed sintering method. Under the excitation of a blue light LD chip with the wavelength of 450 nm, the red light fluorescent ceramic material prepared by the invention realizes the emission of highlight narrow-band red light with the emission wavelength of about 630 nm, has the full width at half maximum of 20-30 nm, the transmittance of 74-78% and the chromaticity coordinate of about (0.682, 0.322), and can be used in the field of laser display.

The invention discloses a negative temperature coefficient medium-entropy thermistor material as well as a preparation method and application thereof. According to the invention, manganese dioxide, nickel oxide, cobalt sesquioxide, zinc oxide and copper oxide are used as raw materials, and a solid-phase reaction method is adopted to prepare the negative temperature coefficient medium-entropy thermistor material with a chemical formula of (NiX1CoX2ZnX3CuX4) Mn2O4. Wherein the values of X1, X2, X3 and X4 are 0.075-0.425, and X1 + X2 + X3 + X4 = 1. The negative temperature coefficient medium-entropy thermistor material is of a single spinel structure. The material has the hysteresis diffusion effect of medium-entropy ceramic, and by combining the coordinated optimization effect of multiple components, the material constant and the resistivity of the thermal sensitive ceramic can be remarkably reduced, and the anti-aging performance can be improved.

Monoorgano tin compounds having chemical formula R′SnX3 and high purity are described. R′ is an optionally substituted hydrocarbyl group, X is selected from NR2 and OR, and each R is independently a linear or branched alkyl group having about 1 to about 10 carbon atoms. Methods for synthesizing and purifying these compounds are also provided. The monoorgano tin compounds may be used for the formation of high-resolution EUV lithography patterning precursors and are attractive due to their high purity and minimal concentration of diorgano tin impurities.

The invention discloses a gas sensing material based on Ag / Pd-LaFeO3 and application of the gas sensing material in detection of hydrogen sulfide gas in municipal sewage, and relates to the technical field of gas sensing materials. The chemical formula of the gas sensing material based on Ag / Pd-LaFeO3 is X wt% of Ag-Y wt% of Pd-LaFeO3, wherein 0 lt; x < = 5, 0lt; y < = 5. According to the invention, on the basis of LaFeO3, the humidity interference resistance of the gas sensing material based on Ag / Pd-LaFeO3 can be improved through double noble metal surface modification of Ag and Pd. In addition, through double noble metal doping of Ag and Pd, the response sensitivity and selectivity of the prepared gas-sensitive material to H2S gas can be improved, and the working temperature of the gas-sensitive material is reduced. Specifically, at the working temperature of 110 DEG C, the response value of the prepared double noble metal modified LaFeO3 to 1ppm H2S gas is 46.16.

An ammoxidation catalyst includes a metal oxide represented by Chemical Formula 1, wherein a first peak having intensity of A appears in the 2θ range of 26.3=0.5°, and a second peak having intensity of B appears in the 2θ range of 28.3±0.5° in X ray diffraction analysis by CuKα, and an intensity ratio (A / B) of the first peak to the second peak is 1.5 or more:MoxBiaFebAcBdCeDfOy  Chemical Formula 1wherein in Chemical Formula 1,A and B are different from each other, and each independently, are one or more elements of Ni, Mn, Co, Zn, Mg, Ca, and Ba,C is one or more elements of Li, Na, K, Rb, and Cs,D is one or more elements of Cr, W, B, Al, Ca, and V,a to f, x, and y are respectively mole fractions of each atom or atomic group,a is 0.1 to 7, b is 0.1 to 7, provided that the sum of a and b is 0.1 to 7,c is 0.1 to 10, d is 0.01 to 5, e is 0.1 to 10, f is 0 to 10,x is 11 to 14, y is a value determined by each oxidation number of Mo, Bi, Fe, A, B, C, and D.

The invention discloses a series of alkali metal borate compounds and alkali metal borate crystals as well as a preparation method and application thereof, and belongs to the technical field of photoelectric functional crystal materials. The chemical general formula of the series of compounds and crystals thereof is A3RE (B3O6) 2, wherein A is K, Rb, Cs or NH4; rE = Sc and Y, the molecular weight is 355.93-744.48, the series of crystals belong to a trigonal system, the space group is P321, the cell parameters a = b = 10.5237 (13)-135237 (13), and # imgabs0 # Z = 3. The series of alkali metal borate compounds are synthesized by adopting a solid-phase reaction method or a hydrothermal method, and the series of crystals grow by adopting a high-temperature melt method or a hydrothermal method or a solution method. The series of materials can be used for manufacturing second harmonic generators, upper and lower frequency converters, optical parametric oscillators, polarizing prisms and the like.

The invention relates to a 4-amino-1, 2, 4-triazole nitrate second-order nonlinear optical crystal material and preparation and application thereof, the chemical formula of the crystal material is (C2H5N4) (NO3), the crystal material belongs to a monoclinic system, the space group is Cc, the cell parameters are # imgabs 0 #, alpha = gamma = 90 degrees, beta = 94.4-98.5 degrees, Z = 4, and the cell volume is # imgabs 1 #. The crystal material disclosed by the invention has a relatively strong frequency-doubled effect, and the frequency-doubled effect is about 3.50 times that of a KH2PO4 (KDP) crystal. Besides, the crystal material has relatively large birefringence of 0.13 at 546 nm and relatively short ultraviolet transmission cut-off edge of 241 nm, and has wide application prospects in the fields of nonlinear optics, electro-optical modulation, photorefractive information processing and the like.

The invention discloses a multiphase ferric sodium pyrophosphate positive electrode material as well as a preparation method and application thereof, and belongs to the technical field of positive electrode materials. The complex-phase phosphoric acid and sodium ferric pyrophosphate positive electrode material has the following chemical formula: xNa4Fe3 (PO4) 2 (P2O7). (1-x) Na3. 12Fe2. 44 (P2O7) 2 / C, C is a carbon coating layer, and the content of the C is 8-10 wt% of the total mass of the composite-phase phosphoric acid and sodium ferric pyrophosphate positive electrode material; xNa4Fe3 (PO4) 2 (P2O7). (1-x) Na3.12Fe2.44 (P2O7) 2 is a core layer, and x is greater than or equal to 0.76 and less than or equal to 0.88. Under the condition that transition metal elements are not added for doping, the electrochemical performance of the complex-phase ferric sodium phosphate pyrophosphate positive electrode material can be obviously improved by regulating and controlling the ratio of positive ions to negative ions of original components of ferric sodium phosphate pyrophosphate, and the complex-phase ferric sodium phosphate pyrophosphate positive electrode material is low in cost, simple to prepare and suitable for large-scale production and application.

A compound of Chemical Formula 1 and an organic light emitting device including the same are provided. The compound is used as a material of an organic material layer of the organic light emitting device, and provides high color purity, high efficiency and enhanced lifetime properties.

The present invention belongs to the field of biomedicine technology. It is a ceramide compound as shown in chemical formula I: #imgabs0# wherein R 1 is selected from the residues obtained by condensation of ferulic acid, sinapic acid, abscisic acid, isotretinoin, retinoic acid, fusidic acid, royal jelly acid, sorbic acid, caffeic acid or trans-cinnamic acid, R 2 Select one of the following structures: -C 15 H 29 ,‑C 15 H 31 ,‑C 15 H 27 , ‑CHOHC 14 H 27 , ‑CHOHC 14 H 29 . The present invention also discloses a preparation method and application of ceramide compounds. The present invention reacts functional carboxylic acid with sphingoid base to obtain a class of ceramide compounds with novel structures. The functional carboxylic acid has a physiologically active molecular fragment introduced into ceramide, which will enhance the original efficacy of such molecules and improve the physical and chemical properties of ceramide compounds, for example, enhance the antioxidant activity of ceramide compounds.

The invention relates to the technical field of electrocatalysis development, in particular to a Co-based two-dimensional coordination polymer electrocatalyst and a preparation method and application thereof. The chemical formula of the Co-based two-dimensional coordination polymer electrocatalyst is {[Co3 (H2O) 4 (5-CMOIA) 2]. 10H2O} n, an X-ray single crystal diffraction test shows that the coordination polymer belongs to a triclinic system and a P-1 space group, and the minimum asymmetric unit of the coordination polymer contains three Co (II) ions, two deprotonated (5-CMOIA) 3-ligands, four coordination water molecules and ten crystal water molecules. The Co-based two-dimensional coordination polymer has relatively high specific surface area and rich active sites, is good in dispersity in a solution, and can be applied to the field of electrocatalysis.

A composition for an organic optoelectronic device, an organic optoelectronic device, and a display device, the composition including a first compound represented by Chemical Formula I, a second compound represented by Chemical Formula II, and a third compound represented by a combination of Chemical Formula III and Chemical Formula IV,

The invention relates to the technical field of luminescent materials, and discloses a preparation method and application of a transition metal and chalcogen ion doped metal halide high-efficiency wide-spectrum luminescent material, the chemical formula of the transition metal and chalcogen ion doped metal halide is Cs2Sn1-x-yCl6: x% Te < 4 + >, yMo < 4 + >, the ultra-wideband fluorescent powder converted light emitting diode (LED) covers the range from visible light (VIS) to near infrared light (NIR), and shows remarkable potential in practical application. According to the invention, ultra-wide spectrum emission from 400 nm to 1400 nm is realized in Mo < 4 + >-Te < 4 + > co-doped Cs2SnCl6, and the photoluminescence quantum yield of 95.3% is achieved, the excellent performance is realized through efficient energy transfer from Te < 4 + > to Mo < 4 + > and passivation synergistic effect of vacancy defects, and the performance can be verified through theoretical calculation and spectral research; finally, the ultra-wideband fluorescent powder conversion LED based on the Mo < 4 + > and Te < 4 + > co-doped Cs2SnCl6 is successfully prepared and is applied to the fields of blood gas analysis and night vision imaging.

The invention belongs to the technical field of crystal porous material preparation and adsorption separation, and relates to a hydroxyl-modified porous coordination polymer material, a preparation method and sulfur dioxide capture application. The chemical formula of the porous coordination polymer is [Ni3 (OH) (TMBTTP) (BDC-2OH) 3], and the porous coordination polymer has a cylindrical cage, a fusiform cage, permanent pore channels, appropriate pore sizes and a hydroxyl-modified pore environment, and can provide sufficient space and rich hydrogen bond binding sites for gas molecular adsorption, so that the porous coordination polymer material is suitable for adsorption separation of SO2.

This application relates to the field of biosynthesis technology, and specifically discloses a pyridone compound, its biosynthesis method and application. Based on synthetic biology-related technologies, this application modifies non-ribosomal peptide synthetase, heterologously expresses non-ribosomal peptide synthetase mutants in a variety of hosts, and for the first time discovers and obtains a pyridone compound, and determines its chemical formula as C5H4N2O3, named 5-amino-pyridine-2,3,6-trione or 5-hydroxy-3-imino-pyridine-2,6-dione. This novel pyridone compound can be used as a raw material or intermediate in the development and preparation of novel antibiotics, drugs and dyes.

The invention belongs to the technical field of novel energy storage battery materials, and particularly relates to a high-entropy Prussian blue positive electrode material as well as a preparation method and application thereof. The chemical formula of the positive electrode material is NaxM [Fe (CN) 6] y.mH2O (at) C, M comprises five different elements of Fe, Ni, Co, Mn, Zn, Ti, V or Cu, the molar ratio of the five different elements is 1: 1: 1: 1: 1-1: 3: 3: 3: 3, x is larger than 0 and smaller than or equal to 2, y is larger than 0 and smaller than or equal to 3, m is larger than 0 and smaller than or equal to 5, and the molar ratio of a carbon component to a high-entropy Prussian blue component is 1: 5-1: 10. Different physical and chemical properties of a plurality of metal elements are utilized, different transition metal elements are coordinated with cyano groups, respective advantages are exerted, the defects of a single metal element are overcome, a stable continuous transmission channel for sodium ions and electrons is constructed in a Prussian blue structure, and the performance of the Prussian blue is improved. Jahn-Teller distortion can be effectively inhibited through the synergistic effect of various metals, and the long cycle stability of the Prussian blue material is remarkably improved.

In the present invention, visible light is appropriately refracted and transmitted. A ceramic material (10) contains, as a primary component, a compound having a perovskite structure represented by the chemical formula A(B1v,B21-v)Ow, wherein A is one or more elements selected from among Ba, Sr, Ca, K, Na, La, Gd and Yb, B1 is one or more elements selected from among Ti and Hf, and B2 is one or more elements selected from among Ta, Nb, Zr, Ge, Gd, Yb, Ga, Ca and Al. The perovskite structure does not contain Mg, Zn, Y or In. v is a positive number that is less than 1. w is a numerical value that enables the overall chemical formula to have a neutral charge.

The invention relates to a formamidine thiosulfate second-order nonlinear optical crystal and preparation and application thereof, the chemical formula of the crystal material is [CH (NH2) 2] 2SO3S, the molecular weight is 203.27, the crystal material belongs to an orthorhombic crystal system, the space group is P212121, the unit cell parameter is # imgabs 0 # alpha = beta = gamma = 90 degrees, Z = 4, and the unit cell volume is # imgabs 1 #. Under 1064nm laser irradiation, the frequency doubling intensity of the powder is about two times that of monopotassium phosphate crystals, and phase matching can be realized. In addition, the crystal material has a wide light transmission wave band, the ultraviolet absorption cut-off edge is 253 nm, the optical band gap is 4.90 eV, and the crystal material is easy to grow. The wavelength range of the coherent light source can be expanded by using optical frequency conversion technologies such as second harmonic generation and optical parametric amplification. Therefore, the crystal material has important application value in the fields of laser frequency conversion, photoelectric information storage and the like.

An ammoxidation catalyst includes a metal oxide represented by Chemical Formula 1 supported on a silica carrier, wherein the catalyst has pores having a diameter of 5 to 200 nm, a pore volume of 0.1 to 3.0 cm3 / g, and a BET surface area of 50 m2 / g to 1,000 m2 / g:Mo12BiaFebAcBdCeOx  Chemical Formula 1wherein in Chemical Formula 1,A is one or more elements of Ni, Mn, Co, Zn, Mg, Ca, and Ba,B is one or more elements of Li, Na, K, Rb, and Cs,C is one or more elements of Cr, W, B, Al, Ca, and V, anda to e, and x are respectively fractions of each atom or atomic group, wherein a is 0.1 to 5, b is 0.1 to 5, c is 0.1 to 10, d is 0.1 to 2, e is 0 to 10, and x is 24 to 48.

The invention discloses a neodymium-zirconium co-substituted M-type strontium ferrite wave-absorbing material and a preparation method thereof, the chemical formula of the neodymium-zirconium co-substituted M-type strontium ferrite wave-absorbing material is Sr1-xNdxZr0. 2Fe11.8 O19, and x is more than or equal to 0.1 and less than or equal to 0.4. The method comprises the following steps: (1) mixing strontium nitrate, ferric nitrate nonahydrate, neodymium nitrate hexahydrate, zirconium nitrate pentahydrate, citric acid monohydrate and deionized water, stirring and dissolving to obtain sol; (2) adjusting the pH value of the sol to 6.5-7.5, and then heating to carry out sol-gel reaction to obtain wet gel; (3) drying and grinding the wet gel to obtain precursor powder; and (4) performing heat treatment on the precursor powder in a box-type furnace, cooling and grinding to obtain the neodymium-zirconium co-substituted M-type strontium ferrite wave-absorbing material. According to the material, effective wave-absorbing frequency band broadening is achieved, the matching thickness corresponding to the effective wave-absorbing bandwidth is as thin as 0.55-0.7 mm, and meanwhile, the performance requirements of thinness, width and strength in the field of electromagnetic compatibility are met.

The present invention belongs to the technical field of ceramic material preparation methods, and specifically relates to a lead-free piezoelectric ceramic, its preparation method, and application. The lead-free piezoelectric ceramic is a KNN-based lead-free piezoelectric ceramic or a BT-based lead-free piezoelectric ceramic having a perovskite structure; the KNN-based lead-free piezoelectric ceramic is prepared by doping gallium nitride with potassium sodium niobate (KNN) ceramic as the matrix, and the chemical formula is 0.955 (K 0.48 Na 0.52 )Nb 0.98 Sb 0.02 O3‒0.045Bi 0.5 Na 0.5 ZrO3‒0.75mol% GaN; The BT-based lead-free piezoelectric ceramic is prepared by doping gallium nitride with barium nitride (BT) as the matrix, and the chemical formula is (Ba 0.85 Ca 0.15 )(Ti 0.9 Zr 0.1 ) O‒1.75mol% GaN; the lead-free piezoelectric ceramic has a dense structure, is lead-free, and exhibits excellent electrochemical properties. The preparation method for the lead-free piezoelectric ceramic is simple, low-cost, pollution-free, and utilizes readily available raw materials. The lead-free piezoelectric ceramic can be used to prepare energy harvesters and has significant application value.

The invention discloses a reverse design method applied to a solid electrolyte material. The method comprises the following steps: firstly, constructing an inorganic solid electrolyte material field knowledge base; generating a chemical formula conforming to physical and chemical rationality through a chemical formula generator based on guidance of a domain knowledge base; based on the generated chemical formula, further utilizing a large language model to generate a candidate crystal structure information file, and performing optimization in combination with a Monte Carlo tree search method; in the optimization process, in order to evaluate the performance of the generated candidate crystal structure, a graph neural network model driven by domain knowledge is cooperated to carry out multi-target performance prediction, a prediction result is used as reward feedback, and then the generation quality of the candidate crystal structure is optimized; and finally, by taking activation energy and convex hull energy as indexes, screening out a potential novel inorganic solid electrolyte material meeting performance requirements. The development efficiency of the inorganic solid electrolyte material is improved.

The invention relates to plasticity-enhanced lead lanthanum zirconium tin titanate-based antiferroelectric ceramic and a preparation method thereof. The chemical formula of the zirconium tin lead titanate lanthanum-based anti-ferroelectric ceramic is (Pb < 0.975-x > La < 0.02 > Sr < x >) (Zr < 0.5 > Sn < 0.37 > Ti < 0.13 >) < 0.9975 > O < 3 >, x is smaller than or equal to 0.10; and sintering by adopting a flash sintering technology to prepare the plasticity-enhanced lead lanthanum zirconate tin titanate-based antiferroelectric ceramic. Wherein the initial electric field intensity is set to be 100-300 V / cm, and the temperature rise rate of the flash sintering furnace body is 5-15 DEG C / min; when the reading of the current detector reaches the order of magnitude of [mu] A, the electric field intensity is increased to 200-500V / cm; after the current density value reaches 10-30 mA / mm < 2 >, the stable current density is kept for 90-200 s; preferably, the temperature rise rate of the flash burning furnace body is 8-12 DEG C / min.

To provide a method for manufacturing a thin film, capable of greatly improving step coverability and thin film thickness uniformity even when forming a thin film on a substrate having a complicated structure by controlling a side reaction to reduce a thin film growth rate and removing a process by-product in the thin film.SOLUTION: A method for manufacturing a thin film comprises the steps of: i) adsorbing a growth inhibitor for thin film formation represented by chemical formula (1) on a substrate surface; and ii) adsorbing a Ti-based thin film precursor on the substrate surface having the adsorbed growth inhibitor. AnBmXo (1) (where, A is carbon or silicon; B is hydrogen or 1-3C alkyl; X is halogen; n is any integer of 1-15; o is an integer of one or more; and m is 0 to 2n+1.).SELECTED DRAWING: Figure 2

The invention discloses a temperature sensing material based on dual-mode thermal response up-conversion luminescence and a preparation method and application thereof, and belongs to the technical field of optical temperature sensing. The chemical formula of the material is Bi (4-y) Ti (0.5) M (0.5) O8X: REy, wherein M is W or Mo, X is Cl or Br, RE is Er or Yb / Er, and a hydrothermal-molten salt method series synthesis strategy is adopted for preparation. Different from a traditional thermal quenching material, according to the dual-mode thermal response up-conversion luminescence temperature sensing material Bi4Ti0. 5M0. 5O8X, visible light is weakened along with temperature rise, and meanwhile 800 nm near-infrared luminescence is enhanced. By utilizing the characteristic that the up-conversion luminescence intensity has opposite response to temperature change, the up-conversion temperature sensing material disclosed by the invention has relatively high optical temperature sensitivity in a fluorescence intensity mode and a fluorescence lifetime mode, and is an optical temperature sensing material with a wide temperature measurement range, which can be used for high-temperature environment detection; the method has great application potential in the field of optical temperature sensing.

The invention discloses an inorganic-organic hybrid compound crystal and a preparation method thereof, and belongs to the technical field of organic-inorganic hybrid materials. The preparation method comprises the following steps: mixing raw materials containing hydroiodic acid, organic cage molecules RCC3 and a lead source with a solvent, and carrying out solvothermal reaction to obtain the inorganic-organic hybrid compound crystal. The chemical formula of the prepared inorganic-organic hybrid compound crystal is ({H18 [C72H108N12] 2 [(Pb10I36)]}. 2I), wherein [C72H108N12] is RCC3 acidified by hydroiodic acid, the crystal has a supramolecular three-dimensional structure assembled by a [Pb5I8] 3-anion cluster unit and a protonated RCC3 molecular cage through electrostatic and hydrogen-bond interaction, and belongs to a monoclinic system, and the space group is P21. The crystal structure is a metal halide-based organic-inorganic hybrid crystal constructed by taking an organic molecular cage as nitrogen-containing cations and lead iodide for the first time.

A novel compound of Chemical Formula 1:wherein in the Chemical Formula 1: n is an integer of 1 to 6; X is O or S; L1 and L2 are each independently a single bond, substituted or unsubstituted C6-60 arylene, or substituted or unsubstituted C2-60 heteroarylene containing at least one heteroatom selected from the group consisting of O, S, Si, P and B; Ar1 is cyano, substituted or unsubstituted C6-60 aryl, or substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of O, S, Si, P and B; and Ar2 and Ar3 are each independently substituted or unsubstituted C6-60 aryl or substituted or unsubstituted C2-60 heteroaryl containing at least one heteroatom selected from the group consisting of O, S, Si, P and B; and an organic light emitting device including the same.