8 results about "Boranes" patented technology

The invention belongs to the technical field of biological detection, and particularly relates to a bisulfite-free detection kit for specific site 5-methylcytosine and a detection method thereof. According to the method, a TAPbeta treatment method is adopted, 5hmC is sealed through beta-GT, 5mC oxidation is carried out through TET, and 5mC is reduced into dihydrouracil (DHU) through pyridine borane, so that the apparent difference between 5mC and C and 5hmC is converted into single nucleotide polymorphism difference. In addition, a flow microsphere technology based on PNA-assisted click chemical connection starting is established to detect DNA methylation specific sites. A PNA clip is innovatively introduced into click chemical connection, and non-specific connection is inhibited. Target sequence enrichment, signal amplification and signal acquisition are carried out through surface-functionalized magnetic nanoparticles, and the detection sensitivity is improved to fM. The invention provides a new tool for high-specificity and high-sensitivity epigenetic marker detection.

The present application relates to the chemical technology field, especially to a high calorific value self-ignition borane ion salt and its preparation method and application. The present application constructs borane cation skeleton and introduces carbon-carbon unsaturated bond by innovatively, uses the electron cloud delocalization effect of unsaturated bond to control the electronic structure of the molecule, reduces the activation energy of oxidation reaction, so as to give the borane ion salt high oxidation activity and self-ignition characteristics, so that it can contact with fuming nitric acid, hydrogen peroxide with a concentration greater than 90% or nitrogen tetraoxide and other strong oxidizing agents to ignite instantly without external ignition source, and still maintains the high calorific value advantage of borane molecule. The results of the examples show that the high calorific value self-ignition borane has a mass calorific value greater than 48.5 kJ / g, and after contacting with red fuming nitric acid, the self-ignition delay time is less than 70 ms; after contacting with 90% H2O2 solution, the self-ignition delay time is not more than 50 ms.

The invention discloses a sulfonium sulfonate photoacid generator containing a carborane structure and application of the sulfonium sulfonate photoacid generator, and particularly provides a compound which is composed of anions and cations, the structure of the anions is shown as a formula (I) or a formula (II), and the structure of the cations is shown as a formula (I) or a formula (II). The photoacid generator provided by the invention is novel in structure, high in exposure energy and good in application prospect.

The application discloses a synthesis method of a N,N-diphenyl-4-(pyridine-4-yl) aniline B-N coordination compound and application thereof. Under anhydrous and anaerobic conditions, (Me4N)B3H8 is reacted with I2 in THF to prepare an intermediate THF.B3H7, which is then reacted with a ligand N,N-diphenyl-4-(pyridine-4-yl) aniline to obtain a borane complex. Under anhydrous and anaerobic conditions, DMS.BH3 is reacted with the ligand N,N-diphenyl-4-(pyridine-4-yl) aniline in THF to obtain the borane complex. The synthesis method is simple, safe and high in yield, and is suitable for laboratory scale preparation. Optical property research shows that the prepared borane complexes all exhibit significant positive solvatochromic effect, aggregation-induced emission characteristics, mechanochromic performance and high quantum yield, and are ideal organic stimulus-responsive luminescent materials.

The invention relates to the technical field of crystal materials, in particular to a bimetallic fluorescent nanocluster based on a sulfydryl carborane ligand and a preparation method and application of the bimetallic fluorescent nanocluster. The preparation method comprises the following steps: mixing a solution containing a carborane derivative ligand with two noble metal precursors or one noble metal precursor and one transition metal precursor to obtain a first mixed solution; stirring the first mixed solution and tetraphenylphosphine bromide in a dark place to obtain a second mixed solution; and stirring the second mixed solution and a reducing agent in a dark place to obtain the bimetallic fluorescent nanocluster. By introducing a carborane derivative ligand into a protection system of a noble metal bimetallic cluster, the ligand has strong metal binding capacity and electronegativity regulation and control characteristics of a carborane cage structure, and can control reduction kinetics under a low-temperature condition, so that synchronous nucleation and assembly of two noble metals or noble metals and transition metals are realized; therefore, the bimetallic cluster with a uniform structure and a clear atomic ratio is obtained.

This invention discloses a method for synthesizing and applying a nested carborane B-N coupling derivative with optical properties. The specific synthesis process is as follows: under anhydrous and oxygen-free conditions, nonborane (CH3)3N·B9H is synthesized... 13 Nested carboranes were prepared by reflux reaction of alkynes in toluene, followed by further reaction of the intermediate with alkali metal hydroxide (MOH) and purification. The nested carboranes were then subjected to a Brønsted-N coupling reaction with 8-aminoisoquinoline, and the crude product was purified to obtain the target product, the nested carborane Brønsted-N coupling derivative. This invention features a simple, safe, and high-yield synthetic process, avoiding the use of expensive ortho-carboranes as raw materials, thus significantly reducing the synthesis cost of nested carboranes. The synthesized nested carborane derivatives exhibit a significant positive solvation colorimetric effect, providing a new synthetic strategy for the design of boron cluster-based functional molecules and the development of luminescent materials.

Embodiments of the present disclosure generally relate to the field of semiconductor manufacturing processes, more particularly, to precursor chemistries and methods of depositing silicon-containing films for forming semiconductor devices. In one or more embodiments, a method includes co-flowing a silicon-containing precursor with a dopant precursor into a processing chamber at a temperature of 600° C. or less to deposit an epitaxial layer over a substrate disposed within the processing chamber. The silicon-containing precursor is selected from a list consisting of silane (SiH4), disilane (Si2H6), trisilane(Si3H8), tetrasilane (Si4H10), monochlorotrisilane (Si3H7Cl), diiodosilane (SiH2I2), and dibromosilane (SiH2Br2). The dopant precursor selected from a list consisting of phosphine (PH3), phosphorus trichloride (PCl3), phosphorus tribromide (PBr3), tert-butylphosphine (TBP), tri-tert-butylborane ((tBu)3B), tert-butylarsine (TBAs), arsenic trichloride (AsCl3), trisilylphosphine (TSP), triisopropylborane (iPr)3B, tert-butylsilane ((tBu)SiH3), isopropylsilane ((iPr)SiH3), tetrakis(tert-butyl)tin ((tBu)4Sn), tetrakis(isopropyl)tin ((iPr)4Sn), tetrakis(tert-butyl)germane ((tBu)4Ge), tetrakis(isopropyl)germane ((iPr)4Ge), germanium tetrachloride (GeCl4), carbon tetrachloride (CCl4), and hexachlorodisilane (Si2Cl6).

The application discloses a kind of o-carborane-thioxanthene fluorescent compounds, fluorescent sensing film and its preparation method and the application of detecting terpene, belong to fluorescent sensing material technical field.The o-carborane of the present application is connected with thioxanthene by covalent bond, and a class of D-A type fluorescent compounds is constructed, wherein thioxanthene is used as electron donor to provide fluorescent emission capacity, and o-carborane is used as electron acceptor to give molecular three-dimensional cage-like stereostructure, which effectively inhibits the quenching effect caused by aggregation, so that the material keeps high fluorescence quantum yield in solid state.The fluorescent compound is loaded on the surface of matrix to prepare fluorescent sensing film, and the film has fluorescent response to a variety of terpene volatile organic compounds such as alpha-pinene, beta-pinene, limonene, 3-carene and camphene, wherein the response to alpha-pinene is the most sensitive, has the advantages of fast response speed, good reversibility, excellent cycle stability and the like, and is suitable for forest pest warning, ecological environment monitoring and volatile biomarker detection and other fields.