/sci/ - Science & Math

[Anonymous No.1788552]

Can somebody explain this: http://en.wikipedia.org/wiki/Antibonding

My o-chem teacher mentioned it just now and didnt really explain what it was or what to do with it or give us an example of it, and then moved onto sp hybridization.

Wiki wasnt much help

Anybody abel to clarify this?

[Anonymous No.1788585]

Nobody?

[Anonymous No.1788608]

Try this:

http://chemwiki.ucdavis.edu/Physical_Chemistry/Quantum_Mechanics/Chemical_Bonding/Bonding_and_antibo
nding_orbitals

<theres a video in the end>

[Anonymous No.1788609]

Sounds like antibonding is what happens when two atoms get near eachother and their electrons orbital probabilty distributions repel eachother. At least thats what Im getting from the wiki article.

[Anonymous No.1788614]

For symmetry reasons, orbitals show both positive and negative interactions when they have nonzero overlap. Because the resulting orbitals are high in energy, populating them is not energetically favorable and if they and their bonding counterparts are populated, they would modify the wavefunction to allow for more Coulomb repulsion - thus raising the bonding orbital in energy and destroying the bond.

[Anonymous No.1788630]

Look up molecular orbital theory.

It's a little something like this. When you create a bond atomic orbitals combine to give a molecular orbital. You can combine orbitals in phase so that they add together - bonding. Or you can add them out of phase - antibonding.