CO2 activating or deactivating?

[doc3232]

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I am asking about COO- not COOH
So both resonance structures give electrons to the Carbon...So this confused me.
NO2 is similar.

 

[Xtian]

deactivating i believe.

 

[bcdds09]

I believe it's deactivating.

 

[atlanta213]

I think it is deactivating meta. carbon double bond with oxygen.

 

[TeamGuo]

whenever you have a carbonyl attached, which is electron withdrawing, it will be deactivating. It doesn't matter if it's a carboxylate ion or COOH. You can't donate any electrons from it to the ring. It will draw electrons to itself.

 

[ramin123]

It will be less dactivating than COOH, because of the resonance--- but still deactivating.