Understanding sigma and pi bonds?

[Adriana Rangel 1A]

So I have a general understanding of what a sigma and pi bonds are. Correct me if I am wrong but what I understand so far is:
A sigma bond forms when the electron orbitals from different atoms overlap along the internuclear axis. They are cylindrically symmetrical with no nodal planes containing the internuclear axis.
A pi bond is bond in which the two electrons lie in two lobes, one on each side of the internuclear axis. The two lobes bond side-to-side rather than overlapping. Pi bonds are usually weaker than sigma bonds.

Please add to this any key concepts I missed that I should know about these two types of bonds.

[Nicole Jacobs 1C]

another thing to add is that sigma bonds can rotate and pi bonds cannot rotate. if pi bonds rotate, then they will break, causing a chemical reaction

[Nancy Dinh 2J]

Also, sigma bonds are formed by hybridized orbitals overlapping. Unhybridized orbitals formal pi bonds.

[Harrison Wang 1H]

And because molecules with pi bonds are unable to rotate, all of the atoms within the molecule are located in the same plane

[Humza_Khan_2J]

Another way to think about it is that pi bonds are unhybridized orbitals lying side by side(generally, from my knowledge, two p orbitals).

[Abdullah2I]

this whole post is really helpful, thanks

[204918982]

why can't pi bonds rotate?

[905022356]

Given that pi bonds form above and bellow the internuclear axis, they hold the atoms in place, making it impossible for them to rotate.

I also wanted to add that single bonds are sigma bonds, and triple and double bonds are pi bonds.

[Michael Cheng 1C]

Do sigma and pi bonds apply to ligands and coordination compounds?