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Topics related to "carbonyl"

carbonyl group
carbonyl group , in chemistry, functional group that consists of an oxygen atom joined by a double bond to a carbon atom. The carbon atom is joined to the remainder of the molecule by two single bonds or one double bond. If the carbonyl group is joined only to alkyl groups or aryl groups , the ... Read more
Ludwig Mond
Ludwig Mond 1839-1909, chemist; father of Alfred Moritz Mond. He was born in Germany and became a naturalized British subject. Mond experimented with alkalies and also developed a producer gas known by his name. He was cofounder and director of Brunner-Mond (1872), which became the world's largest ... Read more
ketone
ketone , any of a class of organic compounds that contain the carbonyl group , C[symbol]O, and in which the carbonyl group is bonded only to carbon atoms. The general formula for a ketone is RCOR′, where R and R′ are alkyl or aryl groups. The simplest ketone, where R and R′ are me... Read more
aldehyde
aldehyde [ al cohol + New Lat. dehydrogenatus =dehydrogenated], any of a class of organic compounds that contain the carbonyl group , and in which the carbonyl group is bonded to at least one hydrogen; the general formula for an aldehyde is RCHO, where R is hydrogen or an alkyl or a... Read more
carboxyl group
carboxyl group , in chemistry, functional group that consists of a carbon atom joined to an oxygen atom by a double bond and to a hydroxyl group , OH, by a single bond. Carboxylic acids are compounds whose molecules contain a carboxyl group that is joined to a hydrogen atom, an alkyl group , or ... Read more
radical
radical in chemistry, group of atoms that are joined together in some particular spatial structure and that take part in most chemical reactions as a single unit. Important inorganic radicals include ammonium, NH 4 ; carbonate, CO 3  ; chlorate, ClO 3 , and perchlorate, ClO 4  ; cyani... Read more
DNA
DNA DNA (deoxyribonucleic acid) was discovered in the late 1800s, but its role as the material of heredity was not elucidated for fifty years after that. It occupies a central and critical role in the cell as the genetic information in which all the information required to duplicate and maintain th... Read more

Encyclopedia entries related to "carbonyl"

Carbonyl group
Encyclopedia entry from: The Gale Encyclopedia of Science Carbonyl group A carbonyl group in chemistry is a group of atoms that consists of a carbon...to two other atoms. The simplest type of molecule that contains a carbonyl group is a ketone. Other types of molecules that contain carbonyl...
carbonyl group
Book article from: The Columbia Encyclopedia, Sixth Edition carbonyl group , in chemistry, functional group...single bonds or one double bond. If the carbonyl group is joined only to alkyl groups or...electron-rich; the carbon atom of the carbonyl group thus becomes electron-deficient...
Aldehydes
Encyclopedia entry from: The Gale Encyclopedia of Science ...organic chemical compounds that contain a carbonyl group (in which a carbon atom is double...carbon (the central carbon atom in the carbonyl group). Aldehydes are similar to ketones, which also contain a carbonyl group. In the aldehydes, however...
Ludwig Mond
Book article from: The Columbia Encyclopedia, Sixth Edition ...outstanding discovery of his was nickel carbonyl, a gas formed from carbon monoxide and...extracting nickel from its ores by use of this carbonyl. In the process, carbon monoxide passing...containing nickel produces the volatile nickel carbonyl; this is decomposed to yield metallic...
Carboxyl group
Encyclopedia entry from: The Gale Encyclopedia of Science ...oxygen atoms). The name carboxyl is actually a combination of the words carbonyl and hydroxyl, since the carboxyl group itself can be considered as a combination of carbonyl (CO) and hydroxyl (OH) groups. Carboxyl groups are reactive. They...
ketone
Book article from: The Columbia Encyclopedia, Sixth Edition ketone , any of a class of organic compounds that contain the carbonyl group , C[symbol]O, and in which the carbonyl group is bonded only to carbon atoms. The general formula for a ketone is RCOR&prime...
carboxyl group
Book article from: The Columbia Encyclopedia, Sixth Edition ...group. A fourth type involves the loss of carbon dioxide (decarboxylation). The second and third types are similar to reactions of the carbonyl group ; the carboxyl group may be thought of as a carbonyl group joined to a hydroxyl group.
Ester
Encyclopedia entry from: The Gale Encyclopedia of Science ...central carbon atom that has two bonds to an oxygen atom (the carbonyl group), C=O, a single bond to another carbon atom represented...central carbon atom that has two bonds to an oxygen atom (the carbonyl group), C=O, a bond to a carbon atom connected to three...
aldehyde
Book article from: The Columbia Encyclopedia, Sixth Edition ...New Lat. dehydrogenatus =dehydrogenated], any of a class of organic compounds that contain the carbonyl group , and in which the carbonyl group is bonded to at least one hydrogen; the general formula for an aldehyde is RCHO, where R is...
formyl group
Book article from: The Columbia Encyclopedia, Sixth Edition formyl group , in chemistry, functional group that consists of a carbonyl group joined by a single bond to a hydrogen atom. Aldehydes are compounds that contain a formyl group joined by a single bond to a hydrogen atom, an alkyl group , or an aryl group .

Dictionary entries related to "carbonyl"

carbonyl
Book article from: The Oxford Pocket Dictionary of Current English ...amides, and esters, and in organic acids as part of the carboxyl group: carbonyl compounds. ∎  a coordination compound in which one...molecules are bonded as neutral ligands to a central metal atom: nickel carbonyl.
Mond, Ludwig
Dictionary entry from: Complete Dictionary of Scientific Biography ...gas plant; and the discovery of nickel carbonyl, which led to a new process for extracting...monoxide under gentle heat to form nickel carbonyl Ni(CO) 4 , which on thermal decomposition...1889), 505 – 510; on nickel carbonyl and nickel extraction, “ On...
Popov, Aleksandr Nikiforivich
Dictionary entry from: Complete Dictionary of Scientific Biography ...radicals form the following order in their affinity for the former carbonyl group: C 6 H 5 and R 3 C > CH 3 > RCH 2 > R...alkyl) — and that in the oxidization of ketones the carbonyl group remains joined to the most stable radical . G . G . Wagner...
ketone
Book article from: A Dictionary of Biology ketone Any one of a group of organic compounds that contain the carbonyl group (>C=O) linked to two hydrocarbon groups. The ketone group is a carbonyl group with two single bonds to other carbon atoms (–CO–...
Ciamician, Giacomo Luigi
Dictionary entry from: Complete Dictionary of Scientific Biography ...discovered were the reciprocal oxidation-reduction of alcohols and carbonyl compounds, the hydrolysis of cyclic ketones into fatty acids...unsaturated aldehydes, the condensation of hydrocyanic acid with carbonyl compounds, the polymerization of unsaturated compounds, and...
Alder, Kurt
Dictionary entry from: Complete Dictionary of Scientific Biography ...dienophiles (compounds having a double bond activated by nearby carbonyl or carboxyl groups). A simple example is the addition of...provided the double bond was properly activated by nearby carbonyl, carboxyl, cyano, or nitro groups. Unsaturated compounds...
Friend, John Albert Newton
Dictionary entry from: Complete Dictionary of Scientific Biography ...able to save enough to enroll in 1906 at the University of Wurzburg. There under Wilhelm Manchot he carried out research on carbonyl derivatives of cuprous salts, for which he was awarded the Ph.D. in 1908. In September 1908 Friend was appointed lecturer...
Nef, John Ulric
Dictionary entry from: Complete Dictionary of Scientific Biography ...agents on the sugars. They isolated and characterized various types of saccharinic acids and used enolization and subsequent carbonyl migrations to interpret the alkaline transformations and degradations of the sugars. They discovered the two types of aldonolactones...
carboxylic acids
Book article from: A Dictionary of Biology carboxylic acids Organic compounds containing the group –CO.OH (the carboxyl group ; i.e. a carbonyl group attached to a hydroxyl group). Many long-chain carboxylic acids occur naturally as esters in fats and oils and are therefore...
ketones
Book article from: A Dictionary of Food and Nutrition ketones Chemical compounds containing a carbonyl group (C=O), with two alkyl groups attached to the same carbon; the simplest ketone is acetone (dimethylketone, (CH 3 ) 2 −C=O).

Related newspaper, magazine, and trade journal articles from HighBeam Research

Carbonyl emissions from commercial cooking sources in Hong Kong.
Magazine article from: Journal of the Air & Waste Management Association; 8/1/2006; ; 700+ words ; ABSTRACT Cooking fumes are an important carbonyl emission source, especially in a highly urbanized...styles was sampled and analyzed for a suite of 13 carbonyl compounds. Carbonyl compositions were varied among the different cooking...
Concentrations and source characteristics of airborne carbonyl compounds measured outside urban residences.
Magazine article from: Journal of the Air & Waste Management Association; 8/1/2006; ; 700+ words ; ...analysis of ambient air concentrations of 10 carbonyl compounds (aldehydes and ketones) measured...concentrations for most of the measured carbonyl compounds on warmer days, reflecting...varied substantially across the measured carbonyl compounds and could be as high as 60...
The carbonyl content of specific plasma proteins is decreased by dietary copper deficiency in rats
Magazine article from: The Journal of Nutrition; 9/1/2002; ; 700+ words ; The Carbonyl Content of Specific Plasma Proteins Is...discernible as an increased content of carbonyl (aldehyde or ketone) groups on the...Cu control rats showed evidence of carbonyl groups. The carbonyl content of these...
Preparation of Pinacol by the electrochemical reduction of carbonyl compounds at stainless steel cathode.(Report)
Magazine article from: International Journal of Applied Chemistry; 9/1/2009; ; 700+ words ; ...study of the electrochemical reduction of carbonyl compounds was very limited. Therefore...electrochemical reduction of various carbonyl compounds such as (1) Acetone (2...for the electrochemical reduction of carbonyl compounds [1-10]. Experimental Potentiostat...
Determination of Carbonyl Group Content in Plasma Proteins as a Useful Marker to Assess Impairment in Antioxidant Defense in Patients with Eales' Disease.(Original Article)(Clinical report)
Magazine article from: Indian Journal of Ophthalmology; 3/1/2004; ; 700+ words ; ...Ramakrishnan Purpose: Formation of protein carbonyl groups is considered an early biomarker...recruited for the study. Plasma protein carbonyl groups,plasma glutathione (GSH) superoxide...erythrocytes. Results: Plasma protein carbonyl content was elevated by a factor of 3...
New York Inventor Develops Metal Carbonyl Precursor Purifying System
News Wire article from: US Fed News Service, Including US State News; 11/27/2007; 541 words ; ...Guilderland, N.Y., has developed a metal carbonyl precursor purifying system. According...for purifying and delivering a metal carbonyl precursor utilized to process a substrate...The method includes providing the metal carbonyl precursor containing un-reacted metal...
Carbonyl compounds and toxicity assessments of emissions from a diesel engine running on biodiesels.(TECHNICAL PAPER)(Report)
Magazine article from: Journal of the Air & Waste Management Association; 2/1/2009; ; 700+ words ; ...effect of biodiesel on the emission of carbonyl compounds generated from a diesel engine...CO.sub.2]) were monitored. The carbonyl compounds in the exhaust were collected...Analysis results indicate that the carbonyl compound emissions increased when the...
New York Inventors Develop Metal Carbonyl Precursor Refurbishment System
News Wire article from: US Fed News Service, Including US State News; 4/14/2008; 529 words ; ...Ossining, N.Y., have developed a metal carbonyl precursor refurbishing method According...method and system for refurbishing a metal carbonyl precursor. The method includes providing...vaporization system containing a metal carbonyl precursor containing un-reacted and...
Carbonyl groups past and present.(Letter to the editor)
Magazine article from: Townsend Letter: The Examiner of Alternative Medicine; 5/1/2007; ; 700+ words ; ...microbial properties. Quinones are carbonyl group molecules with a wide range of...free radical-scavenging capability. Carbonyl group molecules like quinones play an...chemical reactions that involve or produce a carbonyl group as an intermediary or as an end...
Inco's nickel carbonyl process celebrates centenary. (Focus: Management & Technology)
Magazine article from: American Metal Market; 6/16/1989; ; 700+ words ; Inco's nickel carbonyl process celebrates centenary CLYDACH...in the Western World using the nickel carbonyl process to produce high-quality nickel...The latter uses a pressurized nickel carbonyl process, a second-generation version...