Molecular Orbital diagram of Li2 molecule || MOT of LITHIUM MOLECULE скачать в хорошем качестве

Molecular Orbital diagram of Li2 molecule || MOT of LITHIUM MOLECULE

This video explains Molecular orbital diagram of Li2( Lithium Molecule)Lithium molecule is formed by the combination of two Li-atoms. When they combine, they form bonding and anti bonding Molecular orbitals. Bonding Molecular Orbitals 1. The molecular orbital formed by addition of atomic orbitals is called Bonding molecular orbitals. 2. The energy of the Bonding molecular orbital is low 3. 3.The electron density is located between the nuclei, because of which repulsion between nuclei is less. 4. Due to less repulsion, Bonding molecular orbital can hold nuclei together which stabilize the molecule. Hence Bonding molecular orbital is stable. Antibonding Molecular Orbitals The molecular orbital formed by subtraction of atomic orbitals is called Antibonding Molecular orbitals. The energy of the antibonding molecular orbital is high The electron density is located at the corner, because of which repulsion between nuclei is high. Due to higher repulsion, Bonding molecular orbital cannot hold nuclei together which destabilize the molecule. Hence Antibonding molecular orbital is unstable. Electrons are filled based on Aufbau principle, Hund's rule and Pauli's exclusion principle. Since Lithium molecule has 6 electrons, electrons first filled into low energy bonding orbitals and then enters into anti bonding orbitals. Molecular Orbital diagram helps to know Bond order, stability, unpaired electrons and magnetic property of the molecule. Bond order =Nb-Na/2 = 4-2/2 =2/2=1 Stability =Stable Since Bond order is 1, single bond exists between Lithium molecule. Magnetic property - Since there is no unpaired electrons, it is diamagnetic.