Question

short note on molecular orbital theory​

Answer 1

Explanation:

Molecular orbital (MO) theory uses a linear combination of atomic orbitals (LCAO) to represent molecular orbitals resulting from bonds between atoms. ... Chemical substances will form bonding interactions if their orbitals become lower in energy when they interact with each other.

Answer 2

Answer:

Molecular orbital (MO) theory uses a linear combination of atomic orbitals (LCAO) to represent molecular orbitals resulting from bonds between atoms. ... Chemical substances will form bonding interactions if their orbitals become lower in energy when they interact with each other.

Explanation:

EXTRA INFORMATION ↴

Linear Combination of Atomic Orbitals (LCAO)

Molecular orbitals can generally be expressed through a linear combination of atomic orbitals (abbreviated to LCAO). These LCAOs are useful in the estimation of the formation of these orbitals in the bonding between the atoms that make up a molecule.

The Schrodinger equation used to describe the electron behaviour for molecular orbitals can be written in a method similar to that for atomic orbitals.

It is an approximate method for representing molecular orbitals. It’s more of a superimposition method where constructive interference of two atomic wave function produces a bonding molecular orbital whereas destructive interference produces non-bonding molecular orbital.

Characteristics of Bonding Molecular Orbitals

• The probability of finding the electron in the internuclear region of the bonding molecular orbital is greater than that of combining atomic orbitals.
• The electrons present in the bonding molecular orbital result in the attraction between the two atoms.
• The bonding molecular orbital has lower energy as a result of attraction and hence has greater stability than that of the combining atomic orbitals.
• They are formed by the additive effect of the atomic orbitals so that the amplitude of the new wave is given by Φ= ΨA + ΨB
• They are represented by σ, π, and δ

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