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1. The bivalent group C═O.
2. A metal compound, such as Ni(CO)4, containing the CO group.

car′bon·yl′ic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈkɑːbəˌnaɪl; -nɪl)
1. (Elements & Compounds) (modifier) of, consisting of, or containing the divalent group =CO: a carbonyl group or radical.
2. (Elements & Compounds) any one of a class of inorganic complexes in which carbonyl groups are bound directly to metal atoms
carbonylic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈkɑr bə nɪl)
a compound containing metal combined with carbon monoxide, as nickel carbonyl, Ni(CO)4.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.carbonyl - a compound containing metal combined with carbon monoxide
carbonyl group - the bivalent radical CO
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
Adj.1.carbonyl - relating to or containing the carbonyl group
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
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References in periodicals archive ?
Later, pre paration of the Fmoc-protected aza-arginine precursor was accomplished according to Scheme 1A, using reductive amination of 3-([N.sup.[omega]],[N.sup.[omega]]-di-Boc-guanidyf) propanal with Fmoc hydrazine, while the required carbonyl compound was prepared by guanylation of 3-amino-propanol with N,N'-bis-Boc-S-methylisothiourea, followed by oxidation with the Dess-Martin reagent [12].
It is a remarkably simple process that includes only two components: the carbonyl compound and formamide.
The literature indicates that the reaction of a nucleophile with a carbonyl compound is often catalyzed by acid.
This structure decomposes to Zwitterion (1) and a carbonyl compound (2), which can recombine to a normal ozonide (3).
A carbonyl compound is reduced to an alcohol via a metal hydride.
A role of CAN has been proposed to activate the carbonyl compound by binding of CAN with the carbonyl oxygen which ultimately enhances the electrophilicity of the carbonyl carbon leads to increase in the reaction rate.
The 1979 Nobel prize was given to George Wittig for the development of this reaction, in which a carbonyl compound is turned into an olefin.
The boron carbonyl compound BCO and OCBBCO have been characterized to have linear ground quadruplet and singlet state respectively byquantum chemical calculations.
Other compounds detected include tobacco-specific nitrosamines, carbonyl compounds, metals, volatile organic compounds, and phenolic compounds.
Their topics include hydrogen storage as a solution for a changing energy landscape, hydrogen storage based on carbon dioxide: formic acid dehydrogenation, hydrogenating carbonyl compounds of relevance to hydrogen storage in alcohols, dehydrogenating alcohols and polyols from a hydrogen production perspective, and homogeneously catalyzed hydrogenation and dehydrogenation reactions: a mechanistic point of view.
Furfuryl alcohol (FA) and carbonyl compounds, including acetaldehyde, acrolein, formaldehyde, furfural and ethyl carbamate may form adducts with the DNA due to their electrophilic nature.