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Oxalate and CO3 2- as a polydentate

Posted: Mon Dec 02, 2019 8:45 pm
by JinwooLee_1F
As I was solving 9C.5, I did not get b) and d). For b, can someone explain how one molecule can either be a mono- or bidentate ligand? For d), since there are four Oxygen molecules with lone pairs, shouldn't it be a tetradentate ligand? Thank you for your help!

Re: Oxalate and CO3 2- as a polydentate

Posted: Mon Dec 02, 2019 9:16 pm
by Tiffany_Chen 2K
For d), oxalate is bidentate as there will be two double bonds (these won't bind to the metal as the pi bonds restrict rotation, thus only 2 of the single bonded oxygens can bind at once).

Re: Oxalate and CO3 2- as a polydentate

Posted: Tue Dec 03, 2019 12:33 pm
by Maya Beal Dis 1D
Would it always be the two single bonded oxygens that bond to the central atom? Could it be one of the double bonded oxygens and one of the single bonded ones?

Re: Oxalate and CO3 2- as a polydentate

Posted: Tue Dec 03, 2019 1:04 pm
by 605208780
I think it would always be the single bonded ones due to the absense of the pi bond but I am not too sure