Exceptions to double bond rule

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Dylan Davisson 2B
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Exceptions to double bond rule

Postby Dylan Davisson 2B » Sun Nov 19, 2017 11:28 pm

It is said that there are exceptions to the rule that a double bond forms one sigma and one pi bond. What are these exceptions, and why do they happen? Why, in these cases, are both bonds of the double bond pi?

Sarah_Stay_1D
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Re: Exceptions to double bond rule

Postby Sarah_Stay_1D » Mon Nov 20, 2017 12:03 pm

As far as I know there are no cases in which a double bond is composed of two pi bonds. I believe double bonds always have one sigma and one pi bond.


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