Tips for Coordination #

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DominicMalilay 1F
Posts: 107
Joined: Wed Sep 30, 2020 9:36 pm

Tips for Coordination #

Postby DominicMalilay 1F » Sun Dec 06, 2020 10:38 pm

How would coordination numbers work for more complex and lengthy ions? For example Ba[FeBr4]2?

Hayden Lee 1C
Posts: 91
Joined: Wed Sep 30, 2020 9:57 pm

Re: Tips for Coordination #

Postby Hayden Lee 1C » Sun Dec 06, 2020 10:44 pm

Hi there,

The coordination number is simply the number of atoms bonded to the central atom (the transition metal). Everything bonded to the transition metal will be included within brackets. For your example, the coordination number is 4. I hope this helps!

Hannah_Kim_1I
Posts: 97
Joined: Wed Sep 30, 2020 9:56 pm
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Re: Tips for Coordination #

Postby Hannah_Kim_1I » Sun Dec 06, 2020 10:48 pm

Since coordination numbers only apply to the elements inside the brackets, it might make it easier to find the number if you isolate what's inside the brackets.

Tam Nguyen 2B
Posts: 74
Joined: Wed Sep 30, 2020 9:43 pm

Re: Tips for Coordination #

Postby Tam Nguyen 2B » Sun Dec 06, 2020 10:50 pm

Make sure you identify the transition metal and how many ions are going to be bonded to it inside of the brackets, that will tell you your coordination number.

rhettfarmer-3H
Posts: 101
Joined: Wed Sep 30, 2020 9:59 pm

Re: Tips for Coordination #

Postby rhettfarmer-3H » Sun Dec 06, 2020 11:07 pm

the coordination number is just the number of bonds that the TM has made. So, for your example when we check the we see that next to the TM we have a ligand with F4 so the 4 monodentate ligands make 4 bonds so the coordination bond is 4. It is key to check that they are not bidentate or polydentate because when they form chelates it creates to have higher coordination number then it seems.


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