• Present microelectronic photoimaging applications employ onium salts for deep UV (I-line, 365 nm) photolithography. (rpi.edu)
  • Since most onium salts do not absorb at this wavelength, photosensitizers are commonly employed. (rpi.edu)
  • Polynuclear aromatic hydrocarbons are the most efficient known examples of electron-transfer photosensitizers for onium salts. (rpi.edu)
  • Phosphonium salts, major type of quaternary onium salts, can tolerate high temperature fluctuations. (techsciresearch.com)
  • Dr. Halpern invented the "Halpern pKa Guidelines for Evaluation and Optimization of New PTC Applications" and he also invented the q-value structure-activity parameter that characterizes the accessibility of the positive charge of quaternary onium salts that affects ion pairing. (scientificupdate.com)
  • Ions with the suffix -onium, indicating cations with coordination number 4 of the type RxA+ which are analogous to QUATERNARY AMMONIUM COMPOUNDS (H4N+). (childrensmercy.org)
  • Sulfonium compounds are usually synthesized by the reaction of thioethers with alkyl halides. (wikipedia.org)
  • Sulfur Compounds" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (ctsicn.org)
  • A parent cation derived formally by the addition of one hydron to a mononuclear parent hydride of the nitrogen, chalcogen, and halogen families (see RC-80.9.1 ) in its standard bonding number state ( ref 16 ) is named by adding the suffix "-onium" to a root for the element as shown in Table 3 . (qmul.ac.uk)
  • Bases are compounds that dissociates to yield hydroxide/hydroxyl ions (OH-) when dissolved in water. (slideshare.net)
  • In the pharmaceuticals industry, compounds used for drugs are generally complex multifunctional molecules, which are built up by a sequence of chemical reactions. (techsciresearch.com)
  • The compound triphenylsulfonium triflate is a photoacid, a compound that under light converts to an acid. (wikipedia.org)
  • biodegradation and biotransformation of nitroaromatic and explosive compounds and the treatment of acid rock drainage. (arizona.edu)
  • Organic compounds containing two acyl groups bound to NITROGEN. (umassmed.edu)
  • A gaseous compound of hydrogen and nitrogen, NH3, with a pungent smell and taste: -- often called volatile alkali, and spirits of hartshorn. (rhymingnames.com)
  • an abbreviation for AN aerobic AMM onium OX idation, is a globally important microbial process of the nitrogen cycle. (science20.com)
  • The theories are: Acids are hydrogen containing compounds that dissociates to yield hydrogen ions (H+) when dissolved in water. (slideshare.net)
  • Compatible solutes fall into 3 major groups: amino acids (e.g., proline), quaternary and tertiary onium compounds (e.g., glycine betaine, dimethylsulfoniopropionate), and polyol/small sugars (e.g., mannitol, trehalose), all of which are substances that are highly soluble in water [ 9 ]. (hindawi.com)
  • Second, it practically limited acids and bases to ionic compounds that contained the H+ ion or the OH- ion. (slideshare.net)
  • For the purposes of organic nomenclature, a cation is a molecular entity carrying at least one unit of positive charge formally derived from a parent hydride, a parent compound, or a hydro derivative of either, by the gain of one or more hydrons, by the loss of one or more hydride ions, or a combination of these operations. (qmul.ac.uk)
  • The reference for a daily compounded rate is an overnight rate (or overnight index rate) and the exact averaging formula depends on the type of such rate. (netlify.app)
  • This graph shows the total number of publications written about "Onium Compounds" by people in this website by year, and whether "Onium Compounds" was a major or minor topic of these publications. (childrensmercy.org)
  • Below are the most recent publications written about "Onium Compounds" by people in Profiles. (childrensmercy.org)
  • Below are the most recent publications written about "Benzalkonium Compounds" by people in Profiles. (jefferson.edu)
  • Polishing compositions for use in polishing a semiconductor substrate according to the present disclosure include an abrasive, a layered compound, and a dispersion medium. (justia.com)
  • Organic compounds having two alkyl or aryl groups bonded to an oxygen atom, as in the formula R1-O-R2. (uchicago.edu)
  • 1963) Tables of Spectrophotometric Absorption Data of Compounds Used for the Colorimetric Determination of Elements. (photochemcad.com)
  • CRC Atlas of Spectral Data and Physical Constants for Organic Compounds. (photochemcad.com)
  • An overnight indexed swap (OIS) is an interest rate swap where the periodic floating payment is generally based on a return calculated from a daily compound interest investment. (netlify.app)
  • To make the OIS swap have zero initial value at inception, which is how it is traded, the OIS rate therefore must equal the market's expectation of what the compounded daily (geometric average) index rate will be over the lifetime of the OIS. (netlify.app)
  • In Euros the unsecured lending rate to which the OIS is linked is EONIA and in Sterling it is called SONIA where ONIA stands for overnight index rate. (netlify.app)
  • Ions with the suffix -onium, indicating cations with coordination number 4 of the type RxA+ which are analogous to QUATERNARY AMMONIUM COMPOUNDS (H4N+). (bvsalud.org)
  • Organic or inorganic compounds that contain the -N3 group. (nih.gov)
  • Sulfur compounds in which the sulfur atom is attached to three organic radicals and an electronegative element or radical. (jefferson.edu)
  • Organic compounds that contain phosphorus as an integral part of the molecule. (childrensmercy.org)
  • A group of compounds derived from ammonia by substituting organic radicals for the hydrogens. (umassmed.edu)
  • Hirayama, K. (1967) Handbook of Ultraviolet and Visible Absorption Spectra of Organic Compounds. (photochemcad.com)
  • DMS, UV Atlas of Organic Compounds. (photochemcad.com)
  • CRC Atlas of Spectral Data and Physical Constants for Organic Compounds. (photochemcad.com)
  • Organic compounds that have a relatively high VAPOR PRESSURE at room temperature. (nih.gov)
  • Phase transfer catalysis (PTC) is a widely used method for enhancing the reactivity of organic compounds by facilitating their interaction with inorganic or aqueous reagents. (folhadasartes.com)
  • The PTA forms a complex with the anion in the aqueous or solid phase, and brings it to the interface where it deprotonates the organic substrate to form an onium carbanion. (folhadasartes.com)
  • The onium carbanion then reacts with the electrophile in the organic phase to form the product. (folhadasartes.com)
  • His work included the entire field of organic synthesis, particularly emphasizing the novel methodology, which translated into more efficient total synthesis of complex bioactive compounds. (eurekaselect.com)
  • Second, the reaction apparatus is likely to be corroded with chlorine-containing compounds, such as hydrogen chloride and sodium chloride (which are by-produced) and methylene chloride (which is used as a solvent in a large quantity). (justia.com)
  • When you're reviewing the products in your home look for ingredients that include - onium chloride in the name. (drlauraenfield.com)
  • Didecyldimethylamm onium chloride . (drlauraenfield.com)
  • An oxide is a chemical compound of oxygen with other chemical elements. (mcw.edu)
  • Sulfonium compounds are usually synthesized by the reaction of thioethers with alkyl halides. (wikipedia.org)
  • Sulfonium Compounds" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (jefferson.edu)
  • This graph shows the total number of publications written about "Sulfonium Compounds" by people in this website by year, and whether "Sulfonium Compounds" was a major or minor topic of these publications. (jefferson.edu)
  • Below are the most recent publications written about "Sulfonium Compounds" by people in Profiles. (jefferson.edu)
  • Ammonium quaternary compounds (quats) are in all-purpose anti-bacterial cleansers, disinfectant sprays and wipes. (drlauraenfield.com)
  • With respect to a method for producing an aromatic polycarbonate from an aromatic dihydroxy compound and a diaryl carbonate, a transesterification process has conventionally been known, in which a polycarbonate is produced by performing an ester exchange reaction between bisphenol A and diphenyl carbonate in the molten state, while removing a by-produced phenolic compound (such as phenol). (justia.com)
  • The efficiency of PTC depends on several factors that influence the generation, transport, and reactivity of the onium carbanion species. (folhadasartes.com)
  • The Makosza interfacial mechanism, proposed by Makosza in 1974, involves the formation and reaction of an onium carbanion intermediate at the interface between the two phases. (folhadasartes.com)
  • These radicals participate in the biosynthesis of many compounds. (wikipedia.org)
  • and C signifies the residue of compound comprising at least one amido group, one primary amino group, and one secondary amino group, wherein C is linked to B via a nitrogen atom of an amino group, wherein said compound is a poly(amidoamine). (justia.com)
  • In fact, the common name for this chemical, denat onium alludes to this application. (wikidoc.org)
  • One chemical compound, in particular, has been found to be toxic to humans and animals - quats. (drlauraenfield.com)
  • Included under this heading is broad array of synthetic compounds that are used as PESTICIDES and DRUGS. (childrensmercy.org)
  • Provided is a compound constituted from a heteropolyacid anion, a photoreactive cation represented by formula (1), and a hydrogen cation. (sumobrain.com)
  • This resist composition includes a base component (A) and a compound (B0) represented by general formula (b0). (sumobrain.com)
  • 3. Potent Antiglioblastoma Agents by Hybridizing the Onium-Alkyloxy-Stilbene Based Structures of an α7-nAChR, α9-nAChR Antagonist and of a Pro-Oxidant Mitocan. (nih.gov)
  • Since 1995, when the State of Oregon required that denatonium benzoate be added to antifreeze and windshield wiper fluid, the compound has been increasingly found in these substances throughout the world. (wikidoc.org)