Sentences with phrase «aromatic molecules such»

Electron - rich aromatic molecules such as benzene can use their surplus of electrons to react with electron - poor, positively charged species, enabling benzene to exchange one of its hydrogen atoms for the electrophilic group to make a new, substituted benzene.

Simple aromatic molecules such as benzonitrile may be precursors for polycyclic aromatic hydrocarbon formation, providing a chemical link to the carriers of the unidentified infrared bands.

Aromatic molecules such as polycyclic aromatic hydrocarbons (PAHs) are known to exist in the interstellar medium owing to their characteristic infrared emission features.

Not exact matches

There is also evidence for much larger molecules such as polycyclic aromatic hydrocarbons, which resemble the soot from automobile emission.