In organic chemistry, a carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom: C=O. It is common to several classes of organic compounds, as part of many larger functional groups.

The term carbonyl can also refer to carbon monoxide as a ligand in an inorganic or organometallic complex (a metal carbonyl, e.g. nickel carbonyl).

The remainder of this article concerns itself with the organic chemistry definition of carbonyl, where carbon and oxygen share a double bond.

Read more about Carbonyl:  Carbonyl Compounds, Reactivity, α,β-Unsaturated Carbonyl Compounds, Spectroscopy

Other articles related to "carbonyl":

Carbonyl - Spectroscopy
... This absorption is known as the "carbonyl stretch" when displayed on an infrared absorption spectrum ... The 13C NMR of a carbonyl carbon is in the range of 160-220 ppm ...
Applied Spectroscopy - Analysis of Polymers - Oxidation
... to detect, owing to the strong absorption by the carbonyl group in the spectrum of polyolefins ... simple spectrum, with few peaks at the carbonyl position (like polyethylene) ... The carbonyl group can be further oxidised to break the chain, so weakening the material by lowering the molecular weight, and cracks start to grow in the regions ...
Lactoylglutathione Lyase - Mechanism
... The methylglyoxal molecule consists of two carbonyl groups flanked by a hydrogen atom and a methyl group ... In the discussion below, these two carbonyl carbons will be denoted as C1 and C2, respectively ... and the (R)-S-lactoylglutathione product, the glutathione moiety is bonded to the C1 carbonyl group ...
... Gene Ontology Molecular function • 3-keto sterol reductase activity • carbonyl reductase (NADPH) activity • NADPH binding Cellular component • nucleus • nucleolus ... Carbonyl reductase 3 catalyzes the reduction of a large number of biologically and pharmacologically active carbonyl compounds to their corresponding alcohols. 11.2 kilobases and is closely linked to another carbonyl reductase gene - CBR1 ...
Protecting Groups
... It will always react with carbonyl groups, and this cannot be discouraged by any means ... ester is required in the presence of a carbonyl, the attack of the hydride on the carbonyl has to be prevented ... For example, the carbonyl is converted into an acetal, which does not react with hydrides ...