Distinguish b/w Molecular Bond & Valence Bond Theory
Distinguish b/w Molecular Bond & Valence Bond Theory
The Valence bond model can’t explain the fact that some molecules contain two equivalent bonds with a bond order between that of a single bond and a double bond. The best it suggest it that molecules are hybrids, mixture of two Lewis structures that can be written for these molecules. The atomic orbitals are mono-centric. According to this theory the resulting molecule consists of atoms and retains their individual character.
Molecular orbital theory is more powerful than valence bond theory because the orbitals reflect the geometry of the molecule to which they are applied. With this power ease of visualization of model is lost. It is formed by linear combination of atomic orbitals method. Molecular orbitals are poly-centric.
The Valence bond model can’t explain the fact that some molecules contain two equivalent bonds with a bond order between that of a single bond and a double bond. The best it suggest it that molecules are hybrids, mixture of two Lewis structures that can be written for these molecules. The atomic orbitals are mono-centric. According to this theory the resulting molecule consists of atoms and retains their individual character.
Molecular orbital theory is more powerful than valence bond theory because the orbitals reflect the geometry of the molecule to which they are applied. With this power ease of visualization of model is lost. It is formed by linear combination of atomic orbitals method. Molecular orbitals are poly-centric.
