What are the conditions for combination of atomic orbitals in mot?

For the formation of the proper molecular orbital, proper energy and orientation are required. For proper energy, the two atomic orbitals should have the same energy of orbitals and for the proper orientation, the atomic orbitals should have proper overlap and the same molecular axis of symmetry.

When two atomic orbitals combine together in constructive way then they are in?

According to the moleular orbital theory, all atomic orbitals combine to form molecular orbital by LCAO (linear combination of atomic orbitals) method When two atomic orbitals have additive (constructive) method When two atomic orbitals have additive (constructive) overlapping they form bonding molecular orbitals (BMO) …

What results from the constructive interference in the combination of atomic orbitals?

The constructive combination of atomic orbitals gives rise to a system lower in energy than the isolated system and is a bonding molecular orbital.

How can bonding and antibonding orbitals exist at the same time?

Both the antibonding orbitals and the bonding ones are obtained in the same way and in the same operation: when the AOs are combined to obtain the MOs.

What are the rules for the linear combination of atomic orbitals?

Rules for the LCAO method are:

• The same energy of combining orbitals: The combining atomic orbitals must be of equal energy or approximately same energy.
• Same symmetry along the atomic orbital:The combining atoms should have the same symmetry along the molecular axis for proper combination.

How does various orbitals overlap in mot?

According to MOT, two atomic orbitals overlap relsulting in the formation of molecular orbital. The two atomic orbital formed by LCAO (linear combination of atomic orbital) in the same phase or in the different phase are known as bonding and antibonding molecular orbitals respectively.

What is the difference between atomic additive overlapping and subtractive overlapping of atomic orbitals in mot?

How do atomic orbitals interact and give rise to molecular orbitals?

Bonding molecular orbitals are formed by in-phase combinations of atomic wave functions, and electrons in these orbitals stabilize a molecule. Antibonding molecular orbitals result from out-of-phase combinations of atomic wave functions and electrons in these orbitals make a molecule less stable.

What is Lcao in mot?

A linear combination of atomic orbitals, or LCAO, is a quantum superposition of atomic orbitals and a technique for calculating molecular orbitals in quantum chemistry. In quantum mechanics, electron configurations of atoms are described as wave functions.