S. No. | SIGMA (s) BOND | PI (p) BOND |
1. | The bond is formed by the axial overlap of the atomic orbitals. | The bond is formed by the sidewise overlap of the atomic orbitals. |
2. | The overlap is quite larger and the bond is quite strong. | The overlap is less and the bond is comparatively weak. |
3. | s-orbitals can take part in the sigma bond formation. | s-orbitals don't take part in the bond formation. |
4. | Only one lobe of the p-orbital is involved in the overlap. | Both lobes of the p-orbitals are involved in the overlap. |
5. | The electron cloud of the molecular orbital is symmetrical around the internuclear axis. | The electron cloud is unsymmetrical. |
6. | The bond can be formed even in the absence of p bond. | The bond can't be formed in the absence of s bond. |
7. | Free rotation of the atoms around s bond is possible. | Free rotation of the atoms around pi bond is not possible. |
Saturday, May 14, 2011
Distinction between Sigma and PI Bond
Labels:
Chemical Bonding
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment