Pyrrole (C₄H₅N)

Pyrrole (C₄H₅N)

A heterocyclic organic compound.

Chemistry

Keywords

pyrrole, nitrogen-containing organic compound, heterocyclic compound, heteroatom, dipole, chlorophyll, hemoglobin, porphyrin, organic chemistry, chemistry

Related items

Scenes

Pyrrole C₄H₅N

Information

Molar mass: 67.09 g/mol

Boiling point: 130 °C (266 °F)

Density: 0.9691 g/cm³ (0.0350 lb/in³)

Heat of combustion: -2,351 kJ/mol

Properties

The pyrrole molecule is a five-member aromatic ring containing one nitrogen atom. The lone electron pair of the nitrogen atom is tied up in the delocalized electron system. Pyrrole is a colorless, flammable liquid with a chloroform-like odor. It does not dissolve in water but dissolves in most organic solvents. When exposed to air, it first becomes brown and then yellow and then resinifies. It is highly reactive in substitution, oxidation and reduction processes. Pyrrole is a weak acid; it reacts with potassium as hydrogen and pyrrole potassium are produced.

Occurrence and production

Pyrrole occurs in biologically important compounds, such as chlorophyll. In industry pyrrole is produced in a reaction of furan with ammonia.

Uses

Pyrrole is used in the manufacture of colorings and in the pharmaceuticals industry.

Related items

Chlorophyll

Chlorophyll is a photosensitive green pigment found in plants; it absorbs light energy, thus plays a vital role in photosynthesis.

Hemoglobin

Oxygen carrier protein in our red blood cells.

Imidazole (C₃H₄N₂)

A biologically and practically important organic compound.

Proline

One of the 20 amino acids that make up proteins. Its amino group and the 3rd carbon atom of the side chain form a ring.

Purine (C₅H₄N₄)

A heterocyclic aromatic organic compound, its derivatives include guanine and adenine.

Pyridine (C₅H₅N)

A basic heterocyclic organic compound; a colorless, pungent toxic liquid.

Pyrimidine (C₄H₄N₂)

A heterocyclic organic compound, its derivatives are thymine, cytosine and uracil.

Molecule exercise VII (Organic nitrogen compounds)

An exercise about the groups and structure of organic nitrogen compounds.

Added to your cart.