Coordination Number  [ENDORSED]

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KiaraTenorio_14B
Posts: 102
Joined: Fri Sep 24, 2021 5:38 am

Coordination Number

Postby KiaraTenorio_14B » Sun Nov 28, 2021 11:28 pm

When calculating the coordination number of a substances does it only count that of the central elements bonds?

805812306
Posts: 111
Joined: Fri Sep 24, 2021 6:09 am

Re: Coordination Number

Postby 805812306 » Sun Nov 28, 2021 11:31 pm

I believe you are correct in that coordination number only refers to the number of ligands attached and does not pay attention to whether a ligand is a mono or bidentate.

Zoe Apple 1F
Posts: 50
Joined: Fri Sep 24, 2021 5:38 am

Re: Coordination Number

Postby Zoe Apple 1F » Sun Nov 28, 2021 11:37 pm

Yes, the coordination number is found by counting the number of atoms boned to the central atom.

Xiang Li 2F
Posts: 51
Joined: Fri Sep 24, 2021 5:33 am

Re: Coordination Number

Postby Xiang Li 2F » Sun Nov 28, 2021 11:40 pm

Yes. I agree with you that we should only count that of the central elements bonds!

Jonathan Shyu 3L
Posts: 102
Joined: Fri Sep 24, 2021 5:07 am

Re: Coordination Number

Postby Jonathan Shyu 3L » Mon Nov 29, 2021 2:10 am

Yes! Coordination number is counting the number of atoms bonded without regarding how many times an atom is bonded (monodentate, bidentate, etc.)

Cindy Vo 3E
Posts: 100
Joined: Fri Sep 24, 2021 6:52 am

Re: Coordination Number  [ENDORSED]

Postby Cindy Vo 3E » Mon Nov 29, 2021 9:38 am

Yes, the coordination number only takes into consideration the central atom's bonds.

Hannah_Pon_1F
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Re: Coordination Number

Postby Hannah_Pon_1F » Mon Nov 29, 2021 10:21 am

Additionally, something to keep in mind, if a coordination compound has a ligand that is bidentate (2 teeth, 2 bonds) such as en, then this would be accounted for in the coordination number. For example, for [Co(en)2(CO)2]Br the coordination number is (2*2) + 2 = 6


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