structural isomer

Related to structural isomer: geometric isomer

structural isomer

Any of two or more chemical compounds, such as propyl alcohol and isopropyl alcohol, having the same molecular formula but different structural formulas.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

structural isomer

Molecules which are structural isomers have the same molecular formula but have different molecular structures. They may contain different functional groups.

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References in periodicals archive ?

At reflux, the major product formed was an unexpected single structural isomer. Preliminary characterizations of these products by IR, 1H NMR, 13C NMR, GCMS, and HPLC will be described.

On the synthesis and characterization of a reduced neoproaporphine

Aromatic biomarkers and their structural isomers have been found useful for the maturity assessment of oils, source rocks and coals (Radke et al, 1982a; Radke and Welte, 1983; Alexander et al, 1985; Radke et al., 1986; Garrigues et al, 1988; Strachan et al, 1988; Akaegbobi et al, 2000; Akinlua et al, 2007; Sonibare et al, 2008).

Using aromatic biological markers as a tool for assessing thermal maturity of source rocks in the Campano-Maastrichtian Mamu Formation, Southeastern Nigeria

First, the vitamin B3 was found along with its structural isomers -- related molecules that have the same chemical formula but whose atoms are attached in a different order.

Vitamin B3 Delivered to Earth by Meteorites!

Structural isomers of poly/fluorinated di-and tri-alkylated phosphate ester surfactants present in industrial blends and in microwave popcorn bags.

Perfluorinated compounds may lower vaccine protection in children

As expected the two structural isomers having an atomic sequence HONO are more stable than the other possible tetra atomic combinations such as HOON or OONH that are far more unstable than the isomer having a central nitrogen atom.

Allowed energetic pathways for the three-body recombination reaction of nitrogen monoxide with the hydroxyl radical and their potential atmospheric implications

This value is much larger than the band gaps of its structural isomers PFDA and PPV.

Synthesis and characterization of new aromatic polyimides containing well-defined conjugation units

Separation of the chloroform extract by column chromatography over silica gel allowed to isolate four mixtures of these triterpenes, each of them constituted of two structural isomers 1-2, 3-4, 5-6, and 7-8, in the ratio ursane:oleanane derivatives 2:1.