when to switch pi and sigma in p-level

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Ivanna_Tang_3B
Posts: 22
Joined: Wed Sep 21, 2016 2:58 pm

when to switch pi and sigma in p-level

Postby Ivanna_Tang_3B » Mon Oct 24, 2016 11:04 pm

Hello,
when drawing molecular orbital models, how do I know what order to draw the pi and sigma energy levels in the p-orbital (the left model or the right model)? and especially if the atoms are different. Thank you!
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Chem_Mod
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Re: when to switch pi and sigma in p-level

Postby Chem_Mod » Tue Oct 25, 2016 4:42 pm

This depends on the energy of the atomic orbitals that are making up the molecular orbital, which really depends on the types of bonding interactions that are forming the sigma and pi bonds. For example, a pi bond formed through the interactions of d orbitals will have a different energy than a pi bond formed from two p orbitals. We have not yet learned this topic in class since it is part of chapter 4, so you will not need to worry about it for the upcoming quiz.


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