Sentences with phrase «aromatic molecules»

Lavender is particularly rich in aromatic molecules called esters.

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.

Though benzonitrile is one of the simplest so - called aromatic molecules, it is in fact the largest molecule ever seen by radio astronomy.

For example, warm spaces create greater excitement within bonds of aromatic molecules, which causes them to vanish rapidly.

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.

Despite their expected ubiquity, astronomical identification of specific aromatic molecules has proven elusive.

If true, this structure for C60 would be the first example of a spherical aromatic molecule.

PAHs and other aromatic molecules are even more difficult to detect because they typically form with very symmetrical structures.

«Lignin is a complex aromatic molecule that is mainly burned to make steam in a biorefinery plant, a relatively inefficient process that doesn't create a lot of value,» says Birgitte Ahring, Ph.D., the principal investigator on the project.

On the basis of this information, they designed and synthesized five carbonyl - containing aromatic molecules that stay excited and emit light for up to 230 milliseconds.

Diffusion refers to any method or device that disperses aromatic molecules into the air.

As a bonus to the process, the researchers developed a way to calculate the charge on carbon atoms in aromatic molecules to predict which C — H bond is favored for imidation (shown above).

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

We present the discovery of benzonitrile (c - C6H5CN), one of the simplest nitrogen - bearing aromatic molecules, in the interstellar medium.

Radio astronomy is used to identify the aromatic molecule benzonitrile in the interstellar medium.

The brain merges all of these inputs — photons, aromatic molecules, etc. — into our subjective experience of the object in that moment.

Once the molecule is borylated, the boron substituent can be replaced by other substituents, in this case, by an aromatic molecule bearing highly soluble tetra (ethylene glycol) chains (TEG).

When the bacteria were cultured with a precursor in the synthetic pathway, coniferyl alcohol, they obligingly produced the two aromatic molecules — which control bacteria did not do.

Astronomers have identified an aromatic molecule in space using a radio telescope for the first time, spotting benzonitrile in an interstellar dust cloud 430 light - years away.

When the dog curls his lips and flares his nostrils, he opens up Jacobsen's organ, increases the exposure of the nasal cavity to aromatic molecules and essentially becomes a remarkably efficient smelling machine.