Molecular Orbital Theory

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Sydniespore
Posts: 14
Joined: Fri Jan 08, 2016 3:00 am

Molecular Orbital Theory

Postby Sydniespore » Wed Jul 13, 2016 10:11 am

How exactly do you start a molecular orbital?

Francisco Merlos 1D
Posts: 5
Joined: Fri Jun 17, 2016 11:28 am

Re: Molecular Orbital Theory

Postby Francisco Merlos 1D » Wed Jul 13, 2016 10:07 pm

This is the set up for version 2 which is for elements with atomic numbers 8 and above

Image


and the set up for version 1 for elements with atomic numbers 7 and under

the sigma and pie bonds switch in the p orbital but only in the BONDING stage not the ANTIBONDING stage

Izzy Salgado Disc 1D
Posts: 4
Joined: Wed Nov 25, 2015 3:00 am

Re: Molecular Orbital Theory

Postby Izzy Salgado Disc 1D » Sun Jul 17, 2016 10:02 pm

Would someone please explain how exactly one fills the valence electrons for the energy levels for molecular orbital diagrams. In particular, I am confused because for example, when you have the MO energy diagrams for O^2 we get 12 valence electrons in total but then, we fill up 24 arrows in the orbital, and I thought we only needed to fill 12 arrows for the energy levels.

Chem_Mod
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Re: Molecular Orbital Theory

Postby Chem_Mod » Mon Jul 18, 2016 7:37 pm

You only fill up 12 electrons. The molecular orbitals may be formed, but does not have to be filled if you run out of electrons to fill in first.

The rules for filling the electrons obey Aufbau, Pauli exclusion, and Hund's rules (which was covered in Quantum section)


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