## formula for coordination compounds

Minh-Thy Vo 3D
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### formula for coordination compounds

When writing the formula for a coordination compound, is there a rule for the order of the ligands? Or can the ligands be in any order? Thank you!

Aaina 2D
Posts: 140
Joined: Wed Sep 30, 2020 9:41 pm

### Re: formula for coordination compounds

Hi! When there is more than one ligand, you place them in alphabetical order. In today's lecture for example, [Co(NH3)5Cl], it would be penta ammine chloro cobalt (II) with ammine being before chloro.
Hope this helps :)

OwenSumter_2F
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### Re: formula for coordination compounds

Also one thing I was struggling with is that if there are two or more ligands that need a prefix, put each in front of each ligand, rather than just 1 prefix.