Bond Order

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Bond Order

Postby ginnyyao1L » Mon Nov 07, 2016 12:43 am

Just checking if I have the concept right, if bond order is greater than 0, then the molecule is stable and exists in nature?

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Re: Bond Order

Postby Sylvia_Cai_3D » Mon Nov 07, 2016 12:56 am

Bond order is the number of chemical bonds between a pair of atoms. So for example, C-H has a bond order of 1 because it has a single bond. A double bond has a bond order of 2 and a triple bond has a bond order of 3. So, yes, when the bond order is greater than 0 then it is stable because if it were 0 it would not form the molecule. Also, higher bonds indicate a greater stability of the molecule.

Janice Kim 3I
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Re: Bond Order

Postby Janice Kim 3I » Tue Nov 08, 2016 9:45 am

The greater the bond order, the greater the stability of the molecule. For example, O2+ has a bond order of 2.5. When drawing out the Lewis structure for O2+, the 2 indicates a double bond and the .5 indicates a resonance structure. Double bonds are shorter, and thus stronger. If the bond order was 3.0, the Lewis structure would have a triple bond, and thus a shorter and stronger bond.

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