Definition of carbonyl in US English:



  • 1as modifier Of or denoting the divalent radical CO, present in such organic compounds as aldehydes, ketones, amides, and esters, and in organic acids as part of the carboxyl group.

    ‘carbonyl compounds’
    • ‘In simple additions, the carbonyl compounds can behave as both Lewis acids and Lewis bases depending on what reagents are present.’
    • ‘Most sunscreens are aromatic compounds conjugated with a carbonyl group with an electron-releasing amine or methoxyl group substituted in the ortho - or para - position.’
    • ‘In this process carbonyl compounds form hydrates which have different properties from those of the parent (unhydrated chemical + water=hydrated chemical).’
    • ‘We investigated a role of the glyoxalase detoxification system of precursor reactive carbonyl compounds in the in vivo AGE formation.’
    • ‘Perhaps the richest and certainly the most extensively studied cluster compounds are the carbonyl complexes.’
    1. 1.1 A coordination compound in which one or more carbon monoxide molecules are bonded as neutral ligands to a central metal atom.
      ‘nickel carbonyl’
      • ‘It is important to distinguish these organic compounds from the organometallic group known as the metal carbonyls.’
      • ‘In particular, he covers fluxional organic molecules, fluxional metal carbonyls, the discovery of agostic hydrogens, arene complexes of lanthanides and actinides, and ï ½ 2, h, h-C 2 H 4 complexes.’
      • ‘Metal carbonyls have high oscillator strength, large absorption coefficients, and strong electronic resonance in the visible and ultraviolet regimes, making them excellent spectroscopic probes.’
      • ‘It is possible that enols exist in flames as a consequence of interconversion with carbonyls at equilibrium.’
      • ‘Two decades later, a particularly interesting group of compounds made from carbon monoxide - the carbonyls - were discovered by the French chemist Paul Sabatier.’