Sigma vs pi bonds

[Madelyn Cearlock]

Can someone please explain to me the difference between sigma and pi bonds?

[Schem_student]

Sigma bonds are made up of two orbitals in which 1 electron from each atom interact end to end. This is an s-s orbital overlap and allows for rotation. A pi bond is made up of a side by side overlap of orbitals and prevents rotation.

[Yvonne Du]

A sigma bond is the very first bond between two atoms, while pi bonds are the ones that come after the sigma bond. For example in a triple bond, there is one sigma bond and two pi bonds.
Hope this helps.

[Kavya Juwadi 3C]

Also, sigma bonds are generally more stable than pi bonds due to the fact that there is greater orbital overlap in sigma bonds

[Jessica Chen 1F]

Sigma bonds are also stronger than pi bonds, so a double bond (sigma + pi) would overall still be weaker than 2 sigma bonds.

[Raphael_SanAndres3C]

Think of sigma bonds being the inital bond between two molecules and every additional bond being a pi bond.

[Desiree1G]

A sigma bond is the strongest type of covalent chemical bond. A pi bond contains p-p orbitals and it is a covalent bond formed by the side to side overlap of orbitals, which can be easily broken. Also, a single bond consists of a sigma bond, and let's say you have a double bond, this consists of a sigma bond and a pi bond.

[Jonathan Pai 2I]

Sigma's bond along the same orientation axis. Pie bonds don't, so there is no rotation. Pie bonds are weaker than Sigma bonds because they don't have overlap, so weaker attraction