Shape of [Co(en)2(Br)2]

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Christina Cen 2J
Posts: 53
Joined: Sat Jul 22, 2017 3:01 am

Shape of [Co(en)2(Br)2]

Postby Christina Cen 2J » Tue Dec 05, 2017 5:06 pm

On Q4B on the 2010 final, why is the shape of [Co(en)2(Br)2] octahedral if the coordination number is 4?

Maddie Hong 1I
Posts: 21
Joined: Fri Sep 29, 2017 7:04 am

Re: Shape of [Co(en)2(Br)2]

Postby Maddie Hong 1I » Tue Dec 05, 2017 5:25 pm

This is because a single (en) is a bidentate, so it attaches to the central atom at two separate place.
Also the coordination number would be 6. Both (en)'s have two attachment sites and each Br has 1, so 4+2=6 for the coordination number and an octahedral shape.

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