41 results about "Triclinic crystal system" patented technology

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 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 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 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 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.

The invention relates to the technical field of gallium tetrachloride, in particular to a stable gallium tetrachloride crystal material and a preparation method thereof, the crystal is a triclinic system, the space group is shown in the specification, the crystal structure is a zero-dimensional GaCl4 tetrahedral cluster structure, and Ga < 3 + > and four Cl <-> form edge shared tetrahedral coordination. The stable gallium tetrachloride crystal material has a regular triclinic system structure, accurate and controllable lattice parameters, uniform Ga-Cl bond length and bond angle distribution and no obvious lattice defect, the chemical stability and the thermal stability of the crystal are remarkably improved, the hydrolysis rate is low in a normal-temperature and high-humidity environment, the crystal is not easy to decompose at a high temperature, and the application requirements under extreme working conditions can be met.

The invention relates to the technical field of efficient photothermal conversion materials, in particular to an efficient near-infrared photothermal conversion coordination polymer and a preparation method thereof. The chemical formula of the efficient near-infrared photothermal conversion coordination polymer is [K (HPCNDI)] n, K is metal potassium, and HPCNDI is 3, 3 '-(1, 3, 6, 8-tetraoxo-1, 3, 6, 8-tetrahydrobenzo [1mn] [3, 8] phenanthroline-2, 7-diyl) dipropionic acid); the near-infrared photothermal conversion coordination polymer belongs to a triclinic system, and the space group is P-1. The coordination polymer shows a thermally stable charge separation state after photo-induced electron transfer and is accompanied by broad spectrum absorption of 250-2500 nm, and the coloring state of the coordination polymer shows excellent photo-thermal conversion performance under irradiation of near-infrared laser (808 and 1064 nm).

The invention discloses a 4, 4 '-azo-1, 2, 4-triazolyl spontaneous combustion metal-organic framework material as well as a preparation method and application thereof, and belongs to the technical field of spontaneous combustion metal-organic framework materials. The chemical formula of a structural unit of the 4, 4 '-azo-1, 2, 4-triazolyl spontaneous combustion metal-organic framework material is C8H4CuN14 or C8H4CoN14, and the C8H4CuN14 belongs to a 1D chain structure and is crystallized in a P-1 space group of a triclinic system; the C8H4CoN14 belongs to a 2D network structure and is crystallized in a P-1 space group of a triclinic system. The HMOF disclosed by the invention can spontaneously ignite with fuming nitric acid, and the ignition delay time is short; the combustion performance of the propellant can be improved; the nitrogen content of the obtained HMOF is high, and the combustion energy of the solid propellant can be improved, so that the coordination polymer can be applied to the solid propellant as a spontaneous combustion fuel.

The application provides a MOCPs-Ag crystal material and a preparation method and application thereof, the molecular formula of the MOCPs-Ag crystal material is Ag[(PMA) 0.5 (DPE)]*4H2O, wherein PMA is 1,2,4,5-benzene tetraformic acid, and DPE is 1,2-di(4-pyridyl)ethylene ligand; the crystal belongs to a triclinic crystal system P space group, and cell parameters are alpha=66.377 (4) °, beta=86.301 (3) °, gamma=71.838 (3) °, a=10.6957 (4) Å, b=12.4200 (5) Å, c=14.3193 (6) Å, and a cell volume is 1651.97 Å 3 , and Z=2. The application synthesizes a MOCPs-Ag crystal material by using a simple room temperature solvent volatilization method, and the MOCPs-Ag crystal material can be used as a catalyst for electrocatalytic carbon dioxide reduction, and high-efficiency carbon dioxide reduction to carbon monoxide is realized.

The application relates to a sodium supplement, a preparation method of the sodium supplement, a sodium supplement positive electrode and a preparation method of the sodium supplement positive electrode and a sodium ion battery. x MO4, wherein x is 3-4.5, the M comprises a first element, the first element is any one or a combination of at least two of Co, Fe, Mn, Cr, Ti, V, Zr, Mo or W; and the sodium supplement is a triclinic crystal structure. The sodium supplement comprises a triclinic crystal structure of Na x MO4, the crystal structure of the sodium supplement is unstable, is easy to decompose at a low voltage, can be matched with most positive electrode materials, the decomposition product is an oxide, has no negative effect on the positive electrode material and has a high theoretical specific capacity, therefore, the sodium supplement is a high-efficiency sodium supplement, has good compatibility with a sodium ion positive electrode active material, and can improve the capacity and cycle stability of the sodium ion battery. x MO4 can be used as a high-efficiency sodium supplement and has good compatibility with a sodium ion positive electrode active material, thereby improving the capacity and cycle stability of the sodium ion battery.

The application is suitable for the technical field of electron backscatter diffraction crystallography characterization, and provides a non-cubic crystal system EBSD three-dimensional texture high-precision visual analysis method, which comprises seven core steps of crystallography modeling, EBSD data reading and orientation extraction, ODF calculation, IPF color key preprocessing and mapping, pole figure and inverse pole figure calculation, weak texture partition identification and standardized data output; the application, through complete non-cubic crystal system symmetry modeling, reduces the triclinic crystal system orientation calculation error to less than 5 degrees; through Lambert projection coordinate explicit output and standardized data protocol, the visual closedness and format barriers of commercial software are broken; through dynamic threshold partition, the weak texture detection lower limit is reduced to 5 degrees, and the sensitivity is improved by about 80% compared with the traditional method; the application has high precision, strong compatibility and low cost, and can be widely applied to EBSD texture characterization work in the fields of material science, metallurgy, geology and the like.

The application provides 4-aminoisophthalic acid dimethyl ester-tetracyano benzene eutectic, a preparation method and application thereof, the 4-aminoisophthalic acid dimethyl ester-tetracyano benzene eutectic is triclinic system, the space group is, the cell parameter is, alpha = 116.628 (2) °, beta = 99.297 (2) °, gamma = 100.912 (2) °, the cell volume is the 4-aminoisophthalic acid dimethyl ester-tetracyano benzene eutectic provided by the application improves the solid melting point of 4-aminoisophthalic acid dimethyl ester organic compound without changing the covalent bond of the compound, enhances the thermal stability, and realizes the regulation of fluorescence emission performance.

The application discloses a kind of bipyridine oxanthrene as ligand mononuclear rhenium complex and its preparation method and application.The molecular formula of mononuclear rhenium complex with bipyridine oxanthrene as ligand provided by the application is 4-bibpyRe(CO)3Cl, and the crystal thereof belongs to triclinic system, space group is P-1, and cell parameter is the method for synthesizing mononuclear rhenium complex in the application is to mix ligand 4-bibpy and chloropentacarbonylrhenium, then add toluene under argon atmosphere, stir at normal temperature after reaction, and the light yellow precipitate obtained can be washed and dried after reaction.The method for synthesizing mononuclear rhenium complex in the application has the advantages of simple process, mild reaction condition, simple product purification treatment method, etc.The mononuclear rhenium complex with bipyridine oxanthrene as ligand synthesized in the application has good catalytic activity for photocatalytic reduction of carbon dioxide under normal temperature and pressure conditions, and conversion number (TON) can reach 1206, and has good industrial application prospect.

The invention discloses a stable Cu3 cluster catalytic material and application thereof in C (sp3) H and C (sp2) H bond functionalization reaction, and belongs to the crossing field of coordination chemistry and nano materials. According to the copper cluster enantiomer, 4, 5-diphenyl-1, 3-bis (pyridine-2-yl methyl)-4, 5-dihydro-1H-imidazole-3-ammonium chloride is used as a protective ligand, the copper cluster enantiomer is synthesized through a simple one-pot method, and the yield is high. The chemical formula of the cluster is C91H87Cu3F18N17P3, abbreviated as Cu3NC (NHC), the cluster belongs to a triclinic system, the space group is P-1, a is equal to 14.8470 (1), b is equal to 16.7001 (2), c is equal to 19.3691 (2), alpha is equal to 91.311 (1) degrees, beta is equal to 94.283 (1) degrees, gamma is equal to 96.504 (1) degrees, and V is equal to 4755.88 (8) 3. The catalyst utilizes the advantage of dynamic coordination to realize efficient and high-selectivity catalysis of C (sp3) H and C (sp2) H bond functionalization reaction, has the advantages of excellent chemical selectivity (up to 100%), site selectivity (up to 100%), high efficiency (conversion number (TON) = 123200), high yield (up to 99%), wide substrate range (45), mild condition (room temperature) and the like, and realizes the application and development of the functionalized cluster catalyst.

The application provides a Cd(II) coordination polymer, the chemical expression of the polymer is {[Cd2(bptc)(dpb) 1.5 (H2O)]·(H2O)·0.5(dpb)} n , wherein H4bptc is 2,3,3',4'-biphenyl tetracarboxylic acid organic ligand, dpb is 1,4-di(pyridin-4-yl)benzene (dpb) nitrogen-containing ligand, the crystal of the complex belongs to a triclinic system, the space group is Pī, the cell parameters are c=13.3406(3), α=110.165(1)°, β=107.476(1)°, γ=97.459(1)°, and the asymmetric unit is composed of 2 crystallographically independent Cd 2+ ions (Cd1, Cd2), 1 deprotonated bptc 4‑ ligand, 3 dpb ligands (dpbI, dpbII, dpbIII; occupancy: dpbI is 1, and dpbII and dpbIII are 0.5), 1 coordinated water molecule (O9) and 1 lattice water (O10). The Cd(II) coordination polymer provided by the application can be used for specific detection of nitrofuran antibiotics in irrigated water bodies.

This invention discloses a 2-indolineimine spiropyrrolidone compound with the structure shown in formula (A), its crystal form, preparation method, and applications. This invention provides crystal form I of the compound of formula (A), which is triclinic with space group P-1 and cell parameters α = 100.605(2)°, β = 106.706(2)°, and γ = 92.754(2)°. This invention also provides a method for preparing crystal form A, successfully obtaining a 2-indolineimine spiropyrrolidone compound and its crystal form. Furthermore, the compound or its crystal form exhibits certain antibacterial activity and good stability, greatly facilitating subsequent product transportation, storage, or formulation processes.

This invention provides a tetrathiofulvalene tetrabenzaldehyde Schiff base cage compound, the molecular formula of which is C2. 126 H 108 N 16 S 12 The molecular weight is 2231.08, and the unit cell parameters are: a=17.0810(12)Å, b=19.3138(13)Å, c=22.0054(4)Å; α=104.811(2)°, β=101.466(2)°, γ=101.348(2)°, V=6639.3(8)Å. 3 The compound has a Z=2 crystal, space group P-1, and belongs to the triclinic crystal system. It exhibits a wide ultraviolet transmission cutoff edge above 400 nm and a significant near-infrared absorption rate. Near-infrared photothermal conversion performance tests show that the crystal can stably reach above 160°C in 40 seconds during 10 light-cooling cycles, demonstrating excellent photothermal conversion performance. This crystal is obtained through a liquid-phase diffusion method, where it is allowed to diffuse freely by layering and allowing it to stand still. This method offers advantages such as simple operation, the use of common organic raw materials, a short growth cycle, and stable physicochemical properties, making it suitable for various photothermal conversion materials.