ethyl group

chemical compound

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In organometallic compound: Defining characteristics
…larger homologs such as the ethyl group, C₂H₅, which attach to a metal atom through only one carbon atom. (Simple alkyl groups such as these are often abbreviated by the symbol R.) More elaborate organic groups include the cyclopentadienyl group, C₅H₅, in which all five carbon atoms can form bonds…
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