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Determining bond order

Posted: Mon Nov 19, 2018 8:34 pm
by Jennifer Torres 2L
How does one determine the bond order?

Re: Determining bond order

Posted: Mon Nov 19, 2018 8:51 pm
by 505194972 3k
I believe for polyatomic molecules you count the total number of bonds (sigma and pi) and then count the bond groups (areas of electron density but not lone pairs) and divide the two. for anything less you just count the number of bonds between the two molecules.

Re: Determining bond order

Posted: Mon Nov 19, 2018 8:51 pm
by Jake Gordon 1A
Bond order is simply just the stability of a bond and is quantified as the number of bonds between two atoms.
EX.
F-F bond order = 1
O=O bond order = 2
N=-N bond order = 3

For average bond order would be all bond orders in one structure added up divided by the # of bonding regions
Ex NO3- (resonance)
2+1+1 all divided by 3
1 1/3 is the bond order for each resonance blended bond