71 results about "Triclinic crystal system" 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.

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.

The invention belongs to the technical field of stress luminescent materials, and discloses a stress luminescent material film for recording stress information of a closed mechanical structure and a preparation method of the stress luminescent material film. The general formula of the stress luminescent material is SrAl2O4: Eu < 2 + >, Dy < 3 + >, the crystal structure belongs to a triclinic system, the activating agent is Eu < 2 + >, and the sensitizing agent is Dy < 3 + > ions. The method comprises the following steps: according to different mass ratios of M1 (SrAl2O4: Eu < 2 + >, Dy < 3 + >): M2 (polymer); the preparation method comprises the following steps: respectively weighing two compound raw materials, uniformly stirring and mixing, pouring into a fixed mold, and carrying out curing treatment in a vacuum environment of a drying oven at the temperature of 80 DEG C for 2 hours to obtain the stress luminescent film. The stress luminescence film can realize stress luminescence without a high threshold, and the stress luminescence intensity of the stress luminescence film can be self-recovered. The method is simple, and mass production is easy to realize.

The invention relates to the technical field of eutectic crystals, in particular to a eutectic crystal of VC and nicotinamide as well as a preparation method and application thereof, the eutectic crystal of VC and nicotinamide is a triclinic system, the space group is P1, the cell parameters are as follows: # imgabs 0 # alpha = 93.197 (6) degrees, beta = 94.030 (6) degrees, gamma = 97.352 (5) degrees, and the cell volume is # imgabs 1 #. The eutectic crystal is obtained by dissolving VC and nicotinamide in pure water, standing and crystallizing; the obtained eutectic crystal can be applied to cosmetics, health care products, food and medicines. The eutectic crystal provided by the invention has the advantages of no irritation, easy absorption and good stability.

This invention discloses a polyoxometalate that catalyzes the Knoevenagel reaction, its preparation method, and its applications. The chemical formula of the polyoxometalate that catalyzes the Knoevenagel reaction is: H3[K(H2O)6][K2(H2O) 10 ]2[Cu(en)2(H2O)2][Cu(en)2(Nb6O 19 Cu(en))2·24H2O, where en = ethylenediamine; the polyoxometalate crystals catalyzing the Knoevenagel reaction belong to the triclinic crystal system with space group P-1; the polyoxometalates catalyzing the Knoevenagel reaction prepared in this invention exhibit excellent heterogeneous catalytic performance in the highly efficient Knoevenagel condensation reaction, showing high yield and high stability under isothermal conditions at a 1:1 substrate ratio and over a wide substrate range. The superior catalytic ability of the polyoxometalates catalyzing the Knoevenagel reaction can be attributed to the presence of dense and effective basic sites on the surface of the heteropolycationic chain, and the increased contact frequency between the organic-inorganic hybrid catalyst and the substrate.

This invention relates to the field of chemical pharmaceuticals, and more particularly to a mebendazole crystal form and its preparation method. The mebendazole crystal form has a single-crystal structure belonging to the triclinic crystal system; space group Triclinic P; cell parameters a = 6.10 Å, b = 15.69 Å, c = 20.35 Å; α = 94.14°; β = 97.22°, γ = 90.70°, V = 1926 Å. 3 The optimization and development of the crystalline form of p-toluimidazole provided by this invention is of great value.

This invention belongs to the field of fuel cell technology, specifically relating to a method for preparing and applying a hydrogen-bonded organic framework material with high proton conductivity constructed from carboxylic acid-aminoguanidine. The chemical formula of this organic framework material is [(CN4H7)(C 10 [O8H5], this organic framework material belongs to the triclinic crystal system. P Space group 1, cell parameters: a =7.9901(4)Å, b =9.6412(3)Å, c =9.6724(4)Å, α =96.322(3)°, β =113.876(4)°, c =93.633(3)°. The hydrogen-bonded organic framework material constructed by carboxylic acid-aminoguanidine and the composite film prepared therefrom have high proton conductivity and are highly promising proton conduction materials.

The application discloses 4-nitrobenzoic acid imidazole quaternary ammonium salt and a preparation method and application thereof. The 4-nitrobenzoic acid imidazole quaternary ammonium salt provided by the application has a structure as shown in formula (I), is in a single crystal form, is in a triclinic crystal system, and belongs to a P-1 space group. The 4-nitrobenzoic acid imidazole quaternary ammonium salt has a significant bacteriostatic effect, good thermal stability, and can be applied to preparation of antibacterial materials as an antibacterial agent.

The invention belongs to the technical field of photothermal conversion materials, and discloses a preparation method and application of an inorganic-organic hybrid polyoxotungstate photothermal material with wide spectrum absorption. The structural formula of the photo-thermal material is Per4W10O32, the crystal structure belongs to a triclinic system, the space group is P-1, and the photo-thermal material has specific unit cell parameters. The preparation method comprises the following steps: oxidizing perylene molecules through constant current electrolysis in a mixed solvent system containing perylene molecules and a decatungstate precursor in an electrochemical oxidation manner, and assembling the oxidized perylene molecules with decatungstate anions to form bulk crystals; the photo-thermal material has continuous strong absorption in a region from ultraviolet light to short wave infrared, the photo-thermal conversion efficiency is as high as 98.24%, when the photo-thermal material is applied to the fields of solar driven interface photo-thermal evaporation and water treatment, the evaporation rate of a two-dimensional system is 1.89 kg.m <-2 >. H <-1 >, the evaporation rate of a three-dimensional hydrogel system is increased to 3.02 kg.m <-2 >. H <-1 >, salt deposition can be inhibited in long-term seawater desalination operation, and the photo-thermal material has a good application prospect. Fresh water quality meets drinking water standards.

This invention discloses a method for preparing and applying a gold cluster scintillator protected by a stable luminescent free radical ligand. The scintillator material uses (3,5-dichloro-4-pyridine)bis(2,4,6-trichlorobenzene)methyl free radical (PyBTM) as a ligand, and a chain-like tetranuclear free radical cluster is constructed using a one-pot method. The chemical formula of the compound is [Au4(PNP)2(PyBTM)2](SbF6)4, belonging to the triclinic crystal system, space group R-3. This free radical cluster scintillator achieves 100% theoretical exciton utilization and a short radiation decay lifetime due to its unique doublet emission mechanism. These properties make it an ideal candidate material for overcoming the contradiction between high luminous yield and fast response in traditional scintillators. Due to the excellent thermal and water-oxygen stability of this system, it can be fabricated into a scintillator screen to further achieve high-quality X-ray imaging with a spatial resolution of up to 31 LP·mm. ‑1 This provides a general design strategy for high-performance radiation detection materials.

The application provides a 2-amino terephthalic acid dimethyl ester-tetracyano benzene eutectic crystal as well as a preparation method and application thereof, the eutectic crystal is of a triclinic system, a space group is a cell parameter is alpha = 95.041 (2) °, beta = 90.337 (2) °, gamma = 97.670 (2) °, and a cell volume is The 2-amino terephthalic acid dimethyl ester-tetracyano benzene eutectic crystal provided by the application increases the solid melting point of the organic compound from 133.39 DEG C to 162.23 DEG C without changing the covalent bond of the compound, enhances the thermal stability, and meanwhile, the fluorescence emission color, the fluorescence lifetime and the quantum yield are obviously changed.

Cell parameters of the crystal compound are as follows: diffraction data are collected in an omega-theta scanning mode by using MoK alpha rays monochromatized by a graphite monochromator on an Oxford X-ray single crystal diffractometer at the temperature of 273 k, and the crystal compound is characterized in that the crystal belongs to a triclinic system, P-1; the cell parameters are as follows: alpha is equal to 79.857 (3) degrees; beta is equal to 87.082 (3) degrees; gamma is equal to 87.829 (3) degrees; the synthesis method of the crystal chlorine compound (I) comprises the following steps: weighing 0.02 35 g of benzophenone hydrazone and 0.6720 g of 1.0 g of 7-chloroisatin and acetic acid ketone monohydrate complex, putting into a 150mL flask, adding 100.0 mL of chlorobenzene as a solvent, stirring at room temperature for 48 hours, carrying out column chromatography separation, eluting with petroleum ether / dichloromethane (1 / 1), and carrying out vacuum drying to obtain the crystal chlorine compound (I). And naturally volatilizing the collected front component points to obtain the target crystal compound I, namely the 6-bromo-3-diphenylmethylene indoline-2-ketone crystal. The application of the crystal chlorine compound (I) is that the crystal chlorine compound (I) has a relatively strong inhibition effect on epidermophyton flocculent, and the IC50 value of the crystal chlorine compound (I) is 0.063 + / -0.008.

The invention relates to the technical field of magnetic materials, and discloses a binuclear dysprosium single-molecular magnet and a preparation method thereof. The high-yield [Dy2L2 (MeOH) 2 (NO3) 2)]. 3MeOH is prepared by adopting a room-temperature volatilization method, and compared with methods such as high-temperature and high-pressure solvothermal synthesis and poor solvent diffusion, the method has the advantages of simple reaction conditions, easiness in operation, convenience and the like. The crystal structure of the binuclear dysprosium single-molecule magnet material is a triclinic system, the space group is P-1, and the cell parameters are as follows: # imgabs0 # imgabs1 #, alpha is equal to 109.4020 (10) degrees, beta is equal to 93.1900 (10) degrees, and gamma is equal to 98.2070 (10) degrees; the binuclear dysprosium single-molecule magnet synthesized by the method can show typical slow relaxation behavior in a zero field, has the characteristics of a single-molecule magnet, and can be applied to the fields of quantum calculation and ultrahigh-density information storage.

The invention relates to a hydrophobic tripeptide molecule, a crystal constructed by the hydrophobic tripeptide molecule and application of the hydrophobic tripeptide molecule in a piezoelectric device. The structural formula of the polypeptide molecule is shown as a formula (I). The polypeptide molecule can form a micron-sized crystal through a heating-cooling method, and the interior of the micron-sized crystal is of an asymmetric structure and is of a triclinic system. A crystal formed by the polypeptide molecule has a relatively high piezoelectric coefficient (21.5 pC / N), a sandwich type piezoelectric device is constructed by using the crystal, and the output voltage can reach 2.57 V, which is the highest value of an oligopeptide nano material prepared in an aqueous solution. Therefore, the invention provides a method for forming the tripeptide crystal, and provides a potential strategy for development of piezoelectric materials based on short peptide self-assembly. (I)

The invention discloses a fluorescent sensing crystal material for detecting Al < 3 + > as well as a preparation method and application of the fluorescent sensing crystal material. Specifically, the crystal belongs to a triclinic system, the space group is # imgabs 0 #, the molecular formula is C65H56N2O8Zn2, the molecular weight is 1123.97, and the cell parameters are as follows: # imgabs 1 # alpha is equal to 103.131 (4) degrees, beta is equal to 102.942 (5) degrees, and gamma is equal to 101.406 (5) degrees; the prepared material has a clear space structure and an accurate molecular formula, and the crystal material can efficiently and rapidly detect Al < 3 + > ions, and has a wide application prospect as a fluorescence sensor. The technology has the advantages of simplicity in operation, low cost, stable performance and the like.

The X-ray powder diffraction pattern of the crystal form I of levornidazole phosphate of the present invention has characteristic peaks at the diffraction angle 2θ of 13.5, 14.7, 17.1, 19.9, 20.1, 20.8, 23.2, 23.4, 23.7, 23.9, 24.2, 25.6, 26.1, 28.0 and 28.3; and the crystal form belongs to the triclinic crystal system and the P1 space group, and the unit cell parameters and the calculated unit cell volume of the crystal form are as follows: (I). The crystal form I of levornidazole phosphate provided in the present invention has a high purity and a good crystal form stability; and a preparation method therefor is simple and convenient, and is suitable for industrial production.

The application discloses a co-crystal of berberine hydrochloride and m-hydroxybenzoic acid and a preparation method thereof, wherein the co-crystal of berberine hydrochloride and m-hydroxybenzoic acid is formed by the berberine hydrochloride and the m-hydroxybenzoic acid in a molar ratio of 1:0.5-1.5, the co-crystal is a triclinic system, a P-1 space group, and the cell parameters are as follows: alpha / °=102.49+ / -0.2, beta / °=100.51+ / -0.2, gamma / °=117.81+ / -0.2, and Z=2. The co-crystal formed by the berberine hydrochloride and the m-hydroxybenzoic acid can significantly improve the dissolution rate and the dissolution speed of the berberine hydrochloride, the bioavailability of the berberine hydrochloride is significantly increased, the co-crystal has a good treatment effect, and is suitable for clinical application.

The invention discloses a copper-based luminescent material with a negative thermal quenching characteristic and a preparation method thereof, and belongs to the technical field of photoluminescent materials. The copper-based luminescent material is a complex, the chemical formula of the copper-based luminescent material is [(bma) (POPY) CuI] n, n is larger than or equal to 1, a ligand bma is 1, 1 '-[[1, 1'-biphenyl]-4, 4 '-diyl bis (methylene)] bis [2-methyl-1H-imidazole], the copper-based luminescent material belongs to a triclinic system, the space group is P-1, crystal parameters are that alpha is 79.684 (2) degrees, beta is 83.443 (2) degrees, gamma is 69.954 (2) degrees, and Z is 2, raw materials are easy to obtain, the synthesis method is simple, and the yield is high; the material can efficiently emit light at room temperature, and the luminous intensity is continuously increased within the temperature range of 100K-400K along with the rise of the temperature; the preparation of the Cu (I)-organic framework with high emissivity is promoted, the research on functional metal complexes is inspired, and the Cu (I)-organic framework is expected to become a reform material in the fields of illumination, biomedical treatment and information safety.

The application provides a icariin-1,2-dipyridyl ethane co-crystal, and relates to the technical field of crystal drug molecules. The co-crystal uses Cu-K alpha radiation, and the X-ray diffraction spectrum expressed by 2theta has characteristic peaks at 5.00+ / -0.2 degrees, 10.09+ / -0.2 degrees, 10.28+ / -0.2 degrees, 12.41+ / -0.2 degrees, 17.14+ / -0.2 degrees, 23.01+ / -0.2 degrees, 24.43+ / -0.2 degrees, 26.88+ / -0.2 degrees, 27.53+ / -0.2 degrees and 27.60+ / -0.2 degrees. The crystallographic measurement parameters are as follows: triclinic crystal system, space group P-1, cell parameters alpha=104.080(2) degrees, beta=92.0920(10) degrees, gamma=90.1980(10) degrees, cell volume V=0.5937(5) nm3, Z=2, Dc=1.406 g / cm3, F(000)=288, mu=0.152 mm-1, Rint=0.038, R=0.038, wR=0.093, S=1.03, and the related preparation method and application are provided. The icariin-1,2-dipyridyl ethane co-crystal of the application has achieved great improvement in stability and bioavailability.

A particulate nanocomposite material comprising, as determined by X-ray diffraction (XRD): an orthorhombic CaB2O4 crystalline phase; a triclinic MnMgB2O5 crystalline phase; and, a Ca3B2O6 crystalline phase. The particulate nanocomposite material has, based on the total number of atoms in the nanocomposite material: an atomic concentration of carbon (C) of from about 0.1 to about 5 atom %; an atomic concentration of calcium (Ca) of from about 5 to about 15 atom %; an atomic concentration of boron (B) of from about 1 to about 10 atom %; an atomic concentration of manganese (Mn) of from about 5 to about 15 atom %; and, an atomic concentration of magnesium (Mg) of from about 5 to about 15 atom %. The particulate nanocomposite material has utility in immobilizing inorganic contaminants disposed in an aqueous medium and in degrading organic pollutants disposed in an aqueous medium.

The application belongs to the technical field of luminescent materials, and particularly relates to a zero-dimensional four-core manganese complex halide and a preparation method and application thereof. P The zero-dimensional four-core manganese complex halide has a molecular formula of (C6H7NO)4(H2O)6Mn4Br8, a crystal structure belongs to a triclinic crystal system, and a space group is P-1. The zero-dimensional four-core manganese complex halide provided by the application can emit red light of 642 nm under the condition of ultraviolet light excitation, has a photoluminescence quantum yield as high as 37.1%, a luminescence lifetime of 164.6 mu s, and a chromaticity coordinate of (0.670, 0.329), which is highly consistent with the NTSC 1931 standard red light chromaticity coordinate (0.67, 0.33), and has a high color purity, and is less common in known manganese-based complexes. Further, the zero-dimensional four-core manganese complex halide is applied to a light-emitting diode (LED) device, and has potential application values of improving the color rendering performance and color purity of the device and reducing the correlated color temperature.

The present invention discloses a birefringent crystal and a preparation method thereof, belonging to the technical field of optical materials. The chemical formula of the birefringent crystal is (C 12 H8N2)SbF2(H2PO3); The space group of the birefringent crystal is the P-1 space group of the triclinic system; the unit cell parameters are α=106.324°, β=90.246°, γ=105.428°, and Z=2. The present invention adopts o-phenanthroline phosphite ionic liquid to synthesize birefringent crystals by an ionothermal method, which effectively solves the problem that Sb(III) is easily hydrolyzed. In the birefringent crystals prepared by the present invention, the N atoms on the o-phenanthroline ring chelate with the Sb atoms to form a coordination bond so that the lone pair of electrons of Sb always maintains a certain angle with the b-plane, which significantly improves the birefringence of the obtained birefringent crystals.

The present invention belongs to the technical field of preparation and application of copper ion coordination compounds, and specifically provides a divalent copper ion coordination polymer and a preparation method and application thereof. The present invention uses 1,2-ethylenediamine, isonicotinic acid, and triphenyl phosphite as raw materials to synthesize N,N'-bis(4-pyridinecarboxamide)-1,2-ethane, and then uses it as a ligand to construct a divalent copper ion coordination polymer by a hydrothermal method. The coordination polymer is a triclinic system with a molecular formula of C 21 H 17 CuN2O5 can not only inhibit the activation process of urease apoprotein, but also fill the active pocket of urease well, occupy the active position of urease hydrolysis of urea, and interact with the active site of urease, thereby causing irreversible inhibition of urease activity and achieving the effect of inhibiting urease activity.

The application provides a 2-amino terephthalic acid dimethyl ester eutectic crystal as well as a preparation method and application thereof, the eutectic crystal is of a triclinic system, a space group is, a cell parameter is, alpha = 100.928 (2) °, beta = 98.038 (2) °, gamma = 106.164 (2) °, and a cell volume is 0. 734 0 (3) nm3. The 2-amino terephthalic acid dimethyl ester-tetracyano benzene eutectic crystal provided by the application increases the solid melting point of the organic compound from 133.39 DEG C to 161.80 DEG C without changing the covalent bond of the compound, enhances the thermal stability, and meanwhile, the fluorescence emission color, the fluorescence lifetime and the quantum yield are all changed.

The invention relates to a halogen ion-doped nickel-iron hydroxide oxygen evolution catalyst and a preparation method thereof, and the halogen ion-doped nickel-iron hydroxide oxygen evolution catalyst is structurally characterized in that halogen ions are coordinated in a nickel-iron hydroxide laminate, and the number of atoms accounts for 20-40% of the total number of atoms; the atomic number ratio of nickel to iron is (4: 1)-(1: 4); except nickel and iron, the number of atoms of other added cations accounts for 0-20% of the total number of atoms; the halogen ion doped nickel-iron-based hydroxide nanosheet layer grows in a cross-linking manner to form an ordered hollow array, and the thickness of the nanosheet layer is 10-100 nm; the crystal system is a triclinic system, and the space group is R-3m. The catalyst can also grow on carriers such as foamed nickel, foamed nickel, a nickel net, a stainless steel net, foamed iron, an iron net and the like. Under large current density, the catalyst has low oxygen evolution overpotential and Tafel slope, has excellent cycle stability, and shows unpopular application potential in an alkaline electrolytic cell.

The present application relates to a compound vanadium lithium selenite and vanadium lithium selenite birefringent crystal and preparation method and use, the chemical formula of the compound is LiV3Se2O 12 , the molecular weight is 509.68, is made by vacuum packaging method, the chemical formula of the crystal is LiV3Se2O 12 , the crystal belongs to triclinic system, and space group cell parameters are α=91.80 (4) °, β=93.15 (4) °, γ=106.24 (4) °. Z=2.At wavelength 546nm its birefringence Δn=0.5, the light transmission band 0.5 μm to 7 μm.Prepared by chemical vapor deposition method, high temperature melt method or crucible descending method, the size of LiV3Se2O 12 Birefringent crystal obtained by the method is centimeter level, moderate mechanical hardness, easy to cut, polish, process and preserve, insoluble in water, not deliquescent, stable in air;It is suitable for making optical communication components or polarizing prism of various purposes, and these devices utilize the refractive index characteristics of the crystal, especially the larger birefringence.

The invention relates to an azole borate crystal and a preparation method thereof, and a boron nitride material prepared by pyrolysis of an azole borate precursor. And the product with the single crystal particle size of not less than 1mm and the particle size of the single crystal aggregate of not less than 1cm can be prepared. The two crystals are named as a crystal ZB and a crystal AB respectively, the chemical formulas of the crystals are [C4H11N10] [B5O6 (OH) 4] and [C2H5N4] [C2N4H4B5O6 (OH) 4] respectively, and the crystals have definite chemical characteristics that the molecular weight of the ZB is 417.31, the ZB belongs to a monoclinic system, the space group is Ia, and the cell parameter is # imgabs0 # Z = 4; the molecular weight of AB is 387.27, AB belongs to a triclinic system, the space group is P-1, and the cell parameter is # imgabs1 # Z = 2. In view of the fact that the boric acid azole crystals can be directly pyrolyzed and converted into hexagonal boron nitride at a high temperature in an inert atmosphere and have high solubility, good melting characteristic and viscosity during solution concentration, the boric acid azole crystals are used as precursor materials, are suitable for preparing various types of hexagonal boron nitride materials, and are efficient and suitable for large-scale production.

The invention provides a di (3-nitro-1, 2, 4-triazolyl) guanidine borate crystal and a culture method thereof, the crystal belongs to a triclinic system, the space group is P-1, the cell parameters a = 6.5572 (12), b = 7.7250 (14), c = 12.763 (2), alpha = 84.965 (3), beta = 80.876 (3), gamma = 88.150 (3), Z = 2, and the molecular weight is 299.05, and the cell parameters a = 6.5572 (12), b = 7.7250 (14), c = 12.763 (2), alpha = 84.965 (3), beta = 80.876 (3), gamma = 88.150 (3), Z = 2. According to the invention, a gradient cooling method is adopted, the single crystal is obtained by strictly controlling the solution temperature, the cooling rate, the heat preservation time and other operations, and the method is an effective way explored on the basis of failure of other methods. The (3-nitro-1, 2, 4-triazolyl) guanidine borate single crystal is cultured for the first time, the structure of the (3-nitro-1, 2, 4-triazolyl) guanidine borate single crystal is analyzed, the culture method is convenient and simple, and the purity of the cultured crystal is high.

The invention relates to a dicyandiamide radical coordinated mononuclear cobalt complex as well as a preparation method and application thereof, and belongs to the technical field of coordination compounds. The molecular formula of the mononuclear cobalt complex is Co (bim) 4 [N (CN) 2] 2, the mononuclear cobalt complex has a triclinic system and a P-1 space group, and cell parameters are as follows: # imgabs0 # alpha = 65.607 (11) degrees, beta = 89.647 (12) degrees, and gamma = 68.197 (12) degrees. In the mononuclear cobalt complex provided by the invention, the dicyandiamide radical does not serve as a stacking block to link cobalt ions, but only serves as a monodentate ligand to form the mononuclear complex with the cobalt ions. Meanwhile, the complex has paramagnetism, shows slow magnetic relaxation performance under an external field, and can be used for preparing molecule-based magnetic materials.

The invention discloses a nickel-based complex as well as a preparation method and application thereof, and belongs to the technical field of functional materials. According to the nickel-based complex, N-(3-carboxyl phenyl) iminodiacetic acid, nickel salt and phenanthroline serve as raw materials, and the zero-dimensional mononuclear nickel-based complex is prepared. The preparation method of the nickel-based complex is mild in condition and simple in process. Crystal structure analysis shows that the complex belongs to a triclinic system space group, a three-dimensional supramolecular network is formed among molecules through O-H... O hydrogen bonds, and the complex has excellent structural stability and thermal stability. The nickel-based complex can be used as an efficient heterogeneous catalyst to activate peroxymonosulfate to degrade methylene blue dye, shows good catalytic activity and reusability, and has important application prospects in the field of dye wastewater treatment.