(CO3) 2-

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Victoria Dao 3G
Posts: 100
Joined: Wed Sep 30, 2020 9:50 pm

(CO3) 2-

Postby Victoria Dao 3G » Sat Dec 12, 2020 2:33 am

Why is (CO3)-2 considered monodentate/bidentate? I wasn't sure how to determine this based off of the lewis structure.
Last edited by Victoria Dao 3G on Sat Dec 12, 2020 11:44 am, edited 2 times in total.

Hazelle Gunawan 3G
Posts: 105
Joined: Wed Sep 30, 2020 9:52 pm

Re: (CO3) 2-

Postby Hazelle Gunawan 3G » Sat Dec 12, 2020 2:36 am

I was also confused on this, and would be interested in seeing any answers anyone else had!

Arya Adibi 1K
Posts: 115
Joined: Wed Sep 30, 2020 9:41 pm

Re: (CO3) 2-

Postby Arya Adibi 1K » Sat Dec 12, 2020 9:21 am

If you look at the lewis structure, there are two possibilities of how many sites the ligand can bind at:

1. The two single bonded oxygens can bind to an atom (bidentate)
2. The double bounded oxygen can bind to an atom (monodentate

Erika Sosa-Cruz 1J
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Joined: Wed Sep 30, 2020 9:31 pm

Re: (CO3) 2-

Postby Erika Sosa-Cruz 1J » Sat Dec 12, 2020 10:10 am

Arya Adibi 1L wrote:If you look at the lewis structure, there are two possibilities of how many sites the ligand can bind at:

1. The two single bonded oxygens can bind to an atom (bidentate)
2. The double bounded oxygen can bind to an atom (monodentate


Thank you !! I was have a difficult chance understanding this.

Norah Gidanian 3D
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Re: (CO3) 2-

Postby Norah Gidanian 3D » Sat Dec 12, 2020 10:13 am

I was confused about this too but I went to a TA and they said that trigonal planar species can be either monodentate or bidentate. I was confused because in class dr. Lavelle did an example of a trigonal planar and said that the other atoms were too far away to bond. Can anyone explain this.

Sydney Jensen 3L
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Re: (CO3) 2-

Postby Sydney Jensen 3L » Tue Dec 15, 2020 11:00 pm

This is because there are two possibilities in which the oxygens can bind to an atom, whether they ave single bonds or they have double bonds.


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