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HCCo 3 (CO) 9, a metal cluster complex with a methylidyne ligand.. As an odd-electron species, CH is a radical. The ground state is a doublet (X 2 Π).The first two excited states are a quartet (with three unpaired electrons) (a 4 Σ −) and a doublet (A 2 Δ).
In organic chemistry, methenium (also called methylium, carbenium, [2] methyl cation, or protonated methylene) is a cation with the formula CH + 3. It can be viewed as a methylene radical (: CH 2) with an added proton (H +), or as a methyl radical (• CH 3) with one electron removed.
In organic chemistry, a carbanion is an anion in which carbon is negatively charged. [1] [failed verification]Formally, a carbanion is the conjugate base of a carbon acid: . R 3 CH + B − → R 3 C − + HB
Methine or methylylidene (IUPAC) In organic chemistry, a methine group or methine bridge is a trivalent functional group =CH−, derived formally from methane.It consists of a carbon atom bound by two single bonds and one double bond, where one of the single bonds is to a hydrogen.
In organic chemistry, an acyl chloride (or acid chloride) is an organic compound with the functional group −C(=O)Cl. Their formula is usually written R−COCl, where R is a side chain. They are reactive derivatives of carboxylic acids (R−C(=O)OH). A specific example of an acyl chloride is acetyl chloride, CH 3 COCl.
CH 3 (CH 2) 2 COOH 2-methylpropanoic acid: isobutyric acid isobutanoic acid (CH 3) 2 CHCOOH -but-2-enoic acid: crotonic acid trans-butenoic acid 3-methylacrylic acid β-methacrylic acid (E)-2-butenoic acid: CH 3 CH=CHCOOH -but-2-enoic acid: isocrotonic acid cis-crotonic acid cis-butenoic acid (Z)-2-butenoic acid: CH 3 CH=CHCOOH 2 ...
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Acetic anhydride, or ethanoic anhydride, is the chemical compound with the formula (CH 3 CO) 2 O.Commonly abbreviated Ac 2 O, it is the simplest isolable anhydride of a carboxylic acid and is widely used as a reagent in organic synthesis.