24results about "Cadmium organic compounds" patented technology

The invention relates to the technical field of semiconductor luminescent materials, in particular to a wide-band-gap semiconductor crystal luminescent material and a preparation method and application thereof. The chemical composition of the CdLCl < 2 >. H2O or the Cd2L2 (Ac) (H2O) is [CdLCl] < 2 >. H2O]. L represents a quinoline carboxylic acid ligand; ac represents an acetate ion; the crystal structure of the wide-band-gap semiconductor crystal luminescent material is a one-dimensional chain structure. The crystal complex is mainly formed by bridging cadmium ions with carboxyl of a quinoline carboxylic ligand, and the formed crystal complex emits light in a red region, is suitable for various light-emitting application scenes, and solves the problems that an existing wide-band-gap semiconductor light-emitting material is relatively low in light-emitting efficiency, light stability and heat stability, and the light-emitting efficiency is low. And the light-emitting wavelength is difficult to regulate and control.

The invention discloses a quantum dot precursor, a preparation method thereof and a quantum dot, and relates to the field of quantum dots. The structural formula of the quantum dot precursor is as shown in a formula (I): # imgabs0 #. The quantum dot precursor provided by the invention is high in stability.

The invention discloses an energetic material, a preparation method thereof and application of the energetic material as an initiating explosive, an explosive and a pyrotechnic compound. The chemical formula of the energetic material is MC10H18B2N6; wherein M is selected from at least one of Mn, Fe, Co, Ni, Cu, Zn and Cd; the crystal structure of the energetic material belongs to a monoclinic system, and the space group is P21 / n. The obtained energetic material has excellent stability and safety, and is green and environment-friendly. Through experimental determination, the thermal stability is greater than or equal to 120 DEG C, the impact sensitivity is greater than or equal to 40J, and the friction sensitivity is greater than or equal to 240N. Compared with an existing commercial propellant (unsymmetrical dimethylhydrazine), the ignition delay time of the energetic material is equivalent, the defects that fuel and an oxidizing agent are seriously mixed and the combustion efficiency is low are overcome, and the energetic material has important commercial application value in the field of green high-performance energetic materials.

Disclosed are compounds, particularly compounds capable of sensing and / or imaging glycans (such as sialic acid, etc., such as mono-sialic acid, di-sialic acid, tri-sialic acid, polysialic acid) and / or cancer cells and capable of distinguishing between cancer cells and normal cells. The compound is a d8 or d10 metal complex or a salt thereof. The metal complexes may bind to glycans (such as, for example, monosialic acid, disialic acid, trisialic acid, and polysialic acid, etc.) and / or cancer cells. The combination interaction induces the accumulation of the metal complex and the self-assembly of the supramolecules, thereby causing the change of the photophysical properties of the metal complex.

The present application relates to a kind of tunable porphyrin-cadmium complex maykine nanometer nonlinear optical material and its preparation and application, the rotatability of single bond in organic matter is designed two porphyrin-cadmium complex, and it is connected to the surface of two-dimensional few-layer maykine by substitution reaction key.The porphyrin-cadmium complex of one of them occurs rotation due to different bridging groups, different steric hindrance, induces the conjugation degree of organic component to change greatly, to cause two materials to generate response for different pulse scale (nanosecond and femtosecond) laser respectively.Compared with prior art, the material configuration is changed by bridging group in the present application, so as to change the coupling degree of material, excited state lifetime and its nonlinear optical performance, so that the material has selectivity for laser of different pulse scale, and has good application potential for the screening and switching type scene of complex laser.

This application discloses a tetrazine energetic material and its preparation method and application, which belongs to the field of laser detonation and ignition technology. The energetic material includes MC2H x N 10 O y crystal; M is selected from any one of Mn, Fe, Co, Cu, Zn, Cd, and Ni; when M is selected from any one of Mn, Fe, Co, Cu, Zn, and Cd, x=8, y=7; when M is Ni, x=10, y=8. The tetrazine energetic material, as a laser detonation ignition material, generally requires lower laser detonation ignition energy than previously reported compounds and overcomes the serious ClO4 ‑ Despite the shortcomings of ion contamination and high laser ignition threshold, it has important commercial application value in the field of laser initiation and ignition.

A metal-organic framework (MOF) includes cadmium, magnesium, linking units of 2,5-dihydroxyterephthalic acid complexed with cadmium and magnesium, and units of guanidine in an amount of 1 to 25 percent by weight (wt. %) based on the total weight of the MOF. The units of guanidine are reacted with the linking units of 2,5-dihydroxyterephthalic acid. The MOF is in the shape of spherical particles with a longest dimension of 50 to 250 nanometers (nm).

The application discloses a preparation method and application of a cadmium-based fluorescent probe material. The probe compound is obtained by using inorganic cadmium salt and o-phenanthroline as reactants through water bath reaction, and has a chemical formula of [Cd(phen)2(NO3)2], and cell parameters of alpha=90.00°, beta=105.939(1)° and gamma=90.00°. The probe compound has high fluorescence emission efficiency and fluorescence stability, can produce fluorescence quenching effect on Fe 3+ , Co 2+ and Cr2O7 2‑ of different concentration ranges, and can produce fluorescence enhancement effect on SCN ‑ , Br ‑ and I ‑ of different concentration ranges. The probe compound has simple synthesis process, cheap and easily obtained raw materials, good stability, high yield and high purity, can produce specific response to Fe 3+ , Co 2+ , Cr2O7 2‑ , SCN ‑ , Br ‑ and I ‑ at the same time, and has good application prospect.

The invention provides a solid electric heating material as well as a preparation method and application thereof. The chemical formula of the solid electric heating material is [(CH3) 3NCH2Cl] CdCl3. The material is a typical first-level phase change material, phase change causes huge phase change latent heat and entropy change, and the entropy change in the phase change process can reach 50 J kg <-1 > K <-1 >. Meanwhile, the hysteresis of the material is small, the minimum thermal hysteresis can be as low as 3.2 K, the phase change of the material is sensitive to an electric field, and the isothermal entropy change under the small electric field of 7.3 MV m <-1 > exceeds 30 J Kg <-1 > K <-1 > and is far higher than that of an existing material. The [(CH3) 3NCH2Cl] CdCl3 material provided by the invention can realize a large electrothermal effect under a small electric field, so that the [(CH3) 3NCH2Cl] CdCl3 material has a huge potential application value in an electrothermal refrigeration technology.

A system for the synthesis of a Schiff base ligand and its Cd(II) and Zr(OH)2(IV) metal complexes, comprising modules for synthesis, coordination, purification and spectroscopic characterization.

The invention discloses a luminescent crystal material and a preparation method and application thereof in luminescence quenching detection of Hg < 2 + >, a luminescent metal-organic framework crystal material [Cd (L) (OBBA)] n is prepared based on a new AIE type functional ligand 4, 4 '-((9H-fluorene-9-yl) methylene) bis (1H-pyrazole), the method is simple, the synthetic route is simple and easy to control, the product yield can reach 39.3%, and the luminescent crystal material is suitable for industrial production. Compared with the prior art, the material can be used for detecting Hg < 2 + > in a luminescence quenching manner, has extremely high sensitivity, has a quenching constant of 4.36 * 10 < 4 > M <-1 > and a detection limit of 8.25 * 10 <-7 > M in the luminescence quenching detection of water phase Hg < 2 + >, and has a wide application prospect.

The application relates to a method for preparing a cyano borohydride pyridine metal complex, and the specific steps are as follows: a certain amount of transition metal salt is weighed and added into a container, a solvent is added, stirring is uniformly carried out, a pyridine ligand is added into the container, reaction is carried out at 20-80 DEG C for 0.5-6h, sodium cyano borohydride is added into the container, backflow is carried out at 20-80 DEG C for 2-6h, cooling is carried out, continuous stirring is carried out for 2-12h, filtering is carried out, the precipitated product is washed and dried, and the cyano borohydride pyridine metal complex is obtained. The metal complex is self-ignited when being contacted with a strong oxidant, has good ignition and combustion characteristics, and can be applied to the combustion field of solid fuel or solid propellant. The preparation method is simple and the conditions are mild.

This invention discloses an hourglass-shaped polyoxometalate material, its preparation method, and its applications. The invention employs a solvothermal synthesis method to prepare a novel hourglass-shaped polyoxometalate material, and its structure is systematically characterized using single-crystal X-ray diffraction and infrared spectroscopy. The results show that the material's crystal structure possesses a rich and continuous hydrogen bond network, providing an efficient transport channel for the directional migration of protons and electrons, significantly accelerating the proton / electron transfer rate within the crystal framework. Simultaneously, strong coordination and synergistic effects are formed among the metal center, organic ligands, and polyoxometalate anions in the material, not only achieving the ordered assembly of structural units but also effectively strengthening the structural stability of the crystal framework and significantly improving the material's electrochemical stability.

The present invention relates to the field of fluorescence sensing technology, and in particular to a Cd(II)-based metal organic framework crystalline material, its preparation method, and its application. The present invention prepares a Cd(II)-based metal organic framework crystalline material, whose chemical formula is {[Cd3(H2O)2(DMA)2(5-CMOIA)2]·6 / 5H2O} n The organic framework material was characterized by X-ray single crystal diffractometry. The results showed that the organic framework material crystallized in the triclinic P-1 space group, and its asymmetric unit was composed of three Cd(II) ions, two deprotonated (5-CMOIA) 3‑ The present invention measured its solid fluorescence spectrum and explored its fluorescence response to metal ions in solution. The results showed that the Cd(II)-based metal organic framework crystalline material can effectively identify Hg from different ions. 2+ , which can be applied in the field of fluorescence sensing.

The invention discloses a cadmium metal organic complex material. A ligand of the cadmium metal organic complex material is a dicarboxyl derivative H2DPDBP based on tetraphenyl ethylene. The molecular formula of the complex material is C48H44CdN2O6, the complex material belongs to an orthorhombic system, the space group is Pna21, and the cell parameters are as follows: a = 39.526 (2), b = 9.9225 (5), c = 10.0717 (4), alpha = 90 degrees, beta = 90 degrees, gamma = 90 degrees and V = 3950.1 (3). The preparation method of the material comprises the following steps: putting cadmium nitrate and a ligand H2DPDBP into a mixed solvent of N, N-dimethylacetamide and methanol to carry out solvothermal reaction, cooling, filtering, washing and drying to obtain a product. The preparation method is simple, convenient and stable in yield. The material shows strong blue fluorescence emission under a 365nm ultraviolet lamp at room temperature, and has good thermal stability, and the fluorescence quantum yield is up to 98.1%.

The invention belongs to the technical field of fluorescent materials, and particularly relates to a white-light-emitting copper-manganese co-doped two-dimensional cadmium-based perovskite crystal and a preparation method thereof.According to the preparation method, a simple and rapid improved anti-solvent assisted crystallization method is prepared, and a high-purity micron-sized crystal is successfully grown. The preparation method is simple, the raw material cost is low, the preparation of the white light single crystal can be realized by simply regulating and controlling the ratio of Mn to Cu, and the double adjustment of color temperature can be realized by changing the excitation wavelength and the ratio of Mn to Cu, so that the white light single crystal has a great application prospect in white light LEDs (Light Emitting Diodes).

The application discloses a preparation method of cadmium (II) complex single crystal and application of the cadmium (II) complex single crystal in adsorbing UO2 2+ The application belongs to the fields of coordination chemistry and adsorption removal of pollutants in water, and belongs to the field of coordination chemistry and adsorption removal of pollutants in water. The preparation method of the cadmium complex single crystal comprises the following steps: mixing a cadmium source, 5,11,17,23-tetra[(m-carboxyl phenyl)azo]-25,26,27,28-tetrahydroxyl calix[4]arene and 1,4-bis(1-imidazolyl)benzene in a solvent, and reacting to obtain the cadmium complex single crystal. The three-dimensional framework structure of the cadmium (II) complex single crystal prepared by the application is modified with rich carboxylic acid groups, azo groups and imidazole groups, and active adsorption sites are rich, so that the cadmium (II) complex single crystal is more conducive to the action with UO2 2+ , thereby effectively removing UO2 2+ in the aqueous solution. Moreover, the Cd (II) complex single crystal has good stability and can maintain a certain crystallinity in the aqueous solution.

Title: Compounds for complexing rare earth elements and / or s-, p-, d-block metals, their coordination compounds, peptide conjugates, methods for their preparation and their uses The present invention relates to compounds of general formula (I), [Formula 1] JPEG2024533430000465.jpg31169 where Y is nitrogen or N-oxide and R 1 is hydrogen; halogen; hydroxyl; azide; amine; trifluoromethyl; -COO-alkyl; -CH2CH(OMe)2; -SH; -SO3H; -SO2Ar (where Ar is phenyl); NO2; [Case 2] JPEG2024533430000466.jpg7169 ;C6~C 10 Aryl (optionally substituted with -NH2, -NO2, -N, -COOH, -CH2Cl and / or -CH2COOH); C7-C 10 arylalkyl (optionally substituted with -NH2, -NO2, -COOH, -CH2Cl, and / or -CH2COOH); R 2 is an azide group; or [C3] JPEG2024533430000467.jpg9169 (wherein n is an integer ranging from 1 to 3); A is H;-(CH2) n COOH; -CH(CH3)COOH; -CH2P(=O)(OR)2 (where R is H or alkyl); -CH((CH2) n COOH)COOH;-CH((CH2) n -NH2)COOH, where n is an integer from 1 to 3; -CH2C(=O)(NH2); -CH2C(=O)(NH)-CH2COOH; -CH2P(=O)(OH)(Ar), where Ar is phenyl optionally substituted with C1-C6 alkyl; Z is [C4] JPEG2024533430000468.jpg60169 selected from the group consisting of; R 3 teeth, [C5] JPEG2024533430000469.jpg6169 And R 4 is H; halogen; piperidinyl; trimethylsilyl; triisopropylsilyl; phenyl; C1-C6 alkyl; C3-C6 cycloalkyl; -CF3; -(CH2) n NH2;-(CH2) n NHFmoc;-(CH2) n NHBoc;adamantyl; [C6] JPEG2024533430000470.jpg7169 R 5 is R 1 ,or, [C7] JPEG2024533430000471.jpg6169 and / or R 2 and R 3 Both, forming a 1,2,3-triazole group; with the proviso that at most one A is H. The invention further relates to coordination compounds thereof, peptide conjugates thereof, methods for their preparation and their use.

The fast attenuation heat exciton type donor-acceptor complex is characterized by being prepared from a ligand, a connector, metal ions and an organic object in a molar ratio of 1: (1-4): (1-4): (1-10) through coordination and charge transfer. The preparation method comprises the following steps: putting a metal salt, a ligand, a connector and an organic object into a mixed solution of DMF (Dimethyl Formamide), EtOH and H2O; and sealing and heating to form a complex crystalline material. The invention relates to scintillator application. A ligand, a connector and metal ions are coordinated to form a complex acceptor framework, and an organic guest is used as a donor to be filled into pores to form a donor-acceptor configuration heat exciton luminescence mechanism. By replacing ligand acceptor molecules, the photophysical mechanism of the material from delayed fluorescence to fast attenuation heat excitons can be realized, and the regulation and control of emission wavelength and attenuation life can also be realized. The complex disclosed by the invention shows better scintillator properties under ray excitation, including considerable light yield, higher exciton attenuation efficiency and lower radiation detection limit and radiation stability.

The invention relates to the field of materials, and discloses a quinoline Schiff base IIB group metal complex and a preparation method and application thereof.The preparation method comprises the steps that primary amine, quinoline derivatives with aldehyde groups and IIB group metal salt are dissolved in a solvent to be subjected to a reflux reaction, after the reaction is finished, the mixture is cooled to the room temperature and crystallized, and the quinoline Schiff base IIB group metal complex is obtained. The quinoline Schiff base IIB group metal complex is obtained. According to the method, Schiff base in-situ synthesis and a metal coordination process are coupled, synthesis steps are simplified, tedious operation of ligand separation and purification is avoided, synthesis efficiency is improved, reaction conditions are mild, intermediate separation is not needed, and the method is suitable for gram-grade preparation.

The application belongs to the technical field of metal organic coordination compounds, and particularly relates to a metal organic coordination compound of 5-methyl isophthalic acid mixed ligand and a preparation method and application thereof. 39 H 30 ZnN2O5 or C 39 H 30 CdN2O5. On this basis, structure analysis and characterization are carried out on MOFs1 and MOFs2, and structural characteristics of the MOFs1 and MOFs2 are studied through infrared, thermogravimetric, X-ray powder diffraction and ultraviolet reflection tests. Research shows that the two MOFs have isomorphic properties and good photocatalytic activity.

The invention discloses a preparation method of a cadmium (II) complex single crystal and application of the cadmium (II) complex single crystal to UO2 < 2 + > adsorption, and belongs to the field of coordination chemistry and adsorption removal of pollutants in water. The preparation method of the cadmium complex single crystal comprises the following steps: mixing a cadmium source, 5, 11, 17, 23-tetra [(m-carboxyl phenyl) azo]-25, 26, 27, 28-tetrahydroxy calix [4] arene and 1, 4-bis (1-imidazolyl) benzene in a solvent, and reacting to obtain the cadmium complex single crystal. The three-dimensional frame structure of the prepared cadmium (II) complex single crystal is modified with abundant carboxylic acid group, azo group and imidazolyl functional groups, active adsorption sites are abundant, and the cadmium (II) complex single crystal is more beneficial to action with UO2 < 2 + >, so that UO2 < 2 + > in an aqueous solution is effectively removed. In addition, the Cd (II) complex single crystal has good stability and can keep a certain crystallinity in an aqueous solution.

An ionic solid having pores may be useful for incorporating a substance therein. Such an ionic solid may have pores for incorporating a substance therein. The pores may be formed by a crystal lattice of a metal complex. A hydrophilic substance having a molecular weight of 60 or larger may be included in the pores. The hydrophilic substance may be selected from a polyhydric alcohol, a cyclic oligosaccharide, a saccharide, a sugar alcohol, and an amino acid. The hydrophilic substance may be a guest compound.

A 2D perovskite compound, a preparation method thereof and a multicolor long afterglow luminescence application, adopt HOF type organic ligand, can inhibit the non-radiative transition of triplet state, so that a long afterglow compound with good performance, high phosphorescence quantum yield and stability is obtained. The halide perovskite has the characteristics of excitation-dependent fluorescence and phosphorescence, and the fluorescence and phosphorescence luminescence color can be from blue to green and from cyan to yellow. Interestingly, the sample can emit blue and yellow long afterglow after the different excitation light sources are turned off, so that multicolor visual afterglow adjustment can be realized, and applied to multicolor anti-counterfeiting. At the same time, the potential application of the material in the fields of anti-counterfeiting and encryption is shown.