Bond Order

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remymink4J
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Joined: Fri Sep 25, 2015 3:00 am

Bond Order

Postby remymink4J » Sat Oct 31, 2015 12:26 pm

Can bond order ever be negative? Will there be times when there are more electrons in the anti bonding region than in the bonding region?

Jake Ney lecture 1 discussion 1F
Posts: 26
Joined: Fri Sep 25, 2015 3:00 am

Re: Bond Order

Postby Jake Ney lecture 1 discussion 1F » Sat Oct 31, 2015 12:35 pm

No, when you draw the molecular orbital the bonding region is always going to be lower in energy than the anti-bonding region. Thus the bonding regions will always fill up with more elections than the anti-bonding region.

Christian Hessenauer 2A
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

Re: Bond Order

Postby Christian Hessenauer 2A » Sun Nov 01, 2015 11:22 am

I think I might understand the answer given above...
So is it not possible for the number of electrons in antibonding molecular orbitals to be higher than the number of electrons in bonding molecular orbitals?
For example 1/2(4-6).... wouldn't that be -1 making the bond order negative?

Carmille Vega 1C
Posts: 17
Joined: Wed Oct 07, 2015 3:00 am

Re: Bond Order

Postby Carmille Vega 1C » Sun Nov 01, 2015 1:18 pm

Having a negative number is impossible since electrons always add constructively before they add deconstructively. The bond order tells how many bonds a compound has, and a compound can't have a negative amount of bonds. If the bond order is zero, that means that the compound is very unstable or is nonexistent.


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