Molecular orbital structure of pyridine
Answers
The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. The lone pair is in an sp2 orbital, projecting outward from the ring in the same plane as the σ bonds.
Explanation:
1.Pyridine is a basic heterocyclic organic compound with the chemical formula C 5H 5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell.
2.The structure is like benzene, with one methine group replaced by a nitrogen atom. It has a sour, putrid, and fish-like odour. Pyridine can be synthesized from ammonia, formaldehyde, and acetaldehyde or it can be made from crude coal tar. It is weakly basic and is miscible with water.
What is pyridine?
- 6 membered heterocyclic organic compound.
- Chemical Formula is C6H5N
Structure of pyridine:
- Flat molecule with a bond angle of 120°.
- It has 4 C-C bonds of same length.
- IT consist of 2 C-N bonds.
Molecular orbital structure:
- C and N are sp2 hybridised.
- Two sp2 orbitals of N and C are bonded with the other members of the ring.
- Third sp2 orbital of C forms a bond with Hydrogen.
- Third sp2 orbital of N contains lone pair of electrons.