| structural formula n. A chemical formula that shows how the atoms and bonds in a molecule are arranged. |
structural formula
n
(Chemistry) a chemical formula showing the composition and structure of a molecule. The atoms are represented by symbols and the structure is indicated by showing the relative positions of the atoms in space and the bonds between them H-C≡C-H is the structural formula of acetylene See also empirical formula, molecular formula
structural formula (str k ch r-l) A chemical formula that shows how the atoms making up a compound are arranged within the molecule. For example, the structural formula of aspirin is CH3COOC6H4COOH, indicating that it consists of an acetyl group (CH3COO) attached to the carboxylic acid (COOH) of a phenyl group (C6H4). Compare empirical formulamolecular formula |
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| Noun | 1. | structural formula - an expanded molecular formula showing the arrangement of atoms within the molecule molecular formula - a chemical formula based on analysis and molecular weight |
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