Bond Order

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Vanessa Romero-Campos 2B
Posts: 39
Joined: Fri Sep 25, 2015 3:00 am

Bond Order

Postby Vanessa Romero-Campos 2B » Sun Nov 01, 2015 6:35 pm

I know that if when computing the bond order we get
0:the molecule won't form
1: means a single bond
2: means a double bond
3: means a triple bond
but what happens when we get fractions of a number such as 2.5? What kind of bond is formed then?

Ashlee Joan Macalino 3J
Posts: 36
Joined: Fri Sep 25, 2015 3:00 am

Re: Bond Order

Postby Ashlee Joan Macalino 3J » Sun Nov 01, 2015 6:49 pm

When the bond order comes out as a non-integer / decimal, this means that end-to-end overlap occurs between sigma and pi bonds in the Lewis structure. Also, remember that bond order is indicative of a bond's strength, length, and stability. A bond order with a "half bond" will often be less stable and more reactive to try to achieve greater stability.

For more information in bond order, I found this website that summarizes the conceptual background and meaning of bond order trends:
http://chemistry.tutorvista.com/organic-chemistry/bond-order.html

Screen Shot 2015-11-01 at 6.48.21 PM.png


I hope this helps!

Sean Choi 4K
Posts: 11
Joined: Fri Sep 25, 2015 3:00 am

Re: Bond Order

Postby Sean Choi 4K » Sun Nov 01, 2015 10:45 pm

To add on to this, if a bond order has a decimal, one can assume that there will be a resonance structure to the molecule


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