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In organic chemistry, a carbonyl group is a functional group with the formula C=O, composed of a carbon atom double-bonded to an oxygen atom, and it is divalent at the C atom. It is common to several classes of organic compounds (such as aldehydes , ketones and carboxylic acid ), as part of many larger functional groups.
The carbonyl ligand engages in a wide range of bonding modes in metal carbonyl dimers and clusters. In the most common bridging mode, denoted μ 2 or simply μ, the CO ligand bridges a pair of metals. This bonding mode is observed in the commonly available metal carbonyls: Co 2 (CO) 8, Fe 2 (CO) 9, Fe 3 (CO) 12, and Co 4 (CO) 12.
The aquatic inorganic carbon system is composed of the various ionic, dissolved, solid, and/or gaseous forms of carbon dioxide in water. These species include dissolved carbon dioxide, carbonic acid, bicarbonate anion, carbonate anion, calcium carbonate, magnesium carbonate, and others.
Iron pentacarbonyl, also known as iron carbonyl, is the compound with formula Fe(C O) 5. Under standard conditions Fe 5 is a free-flowing, straw-colored liquid with a pungent odour. Older samples appear darker. This compound is a common precursor to diverse iron compounds, including many that are useful in small scale organic synthesis. [2]
Important inorganic carbon-sulfur compounds are the carbon sulfides carbon disulfide (CS 2) and carbonyl sulfide (OCS). Carbon monosulfide (CS) unlike carbon monoxide is very unstable. Important compound classes are thiocarbonates, thiocarbamates, dithiocarbamates and trithiocarbonates.
Many simple organic ligands form strong bridges between metal centers. Many common examples include organic derivatives of the above inorganic ligands (R = alkyl, aryl): OR −, SR −, NR − 2, NR 2− (imido), PR − 2 (phosphido, note the ambiguity with the preceding entry), PR 2− (phosphinidino), and many more.
For an alternative listing of inorganic compounds of carbon, please see inorganic compounds by element#Carbon, Subcategories. ... Carbonyl sulfide; Chlorographene;
Nickel carbonyl (IUPAC name: tetracarbonylnickel) is a nickel(0) organometallic compound with the formula Ni(CO) 4.This colorless liquid is the principal carbonyl of nickel.It is an intermediate in the Mond process for producing very high-purity nickel and a reagent in organometallic chemistry, although the Mond Process has fallen out of common usage due to the health hazards in working with ...