Naming/Coord Comp

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duenezjuleny1D
Posts: 48
Joined: Fri Sep 28, 2018 12:24 am

Naming/Coord Comp

Postby duenezjuleny1D » Wed Jul 31, 2019 2:05 am

when naming how do you begin/what goes first and how do you know?

hannabarlow1A
Posts: 37
Joined: Mon Jun 17, 2019 7:23 am

Re: Naming/Coord Comp

Postby hannabarlow1A » Wed Jul 31, 2019 7:39 am

The cation ion is listed first. The ligands are listed in alphabetical order (not including their numerical prefixes) and then the metal ion and its charge and then the anion.

Bella Martin
Posts: 47
Joined: Wed Sep 21, 2016 2:57 pm

Re: Naming/Coord Comp

Postby Bella Martin » Wed Jul 31, 2019 9:18 am

How do we know when the metal should end in -ate?

EthanPham_1G
Posts: 76
Joined: Sat Jul 20, 2019 12:17 am

Re: Naming/Coord Comp

Postby EthanPham_1G » Sat Nov 23, 2019 12:31 am

The metal ends in -ate if the whole coordination complex has a net negative charge. The example that Lavelle gave in class was [Ni(CN)4]-2.

nickianel_4b
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Naming/Coord Comp

Postby nickianel_4b » Sat Nov 23, 2019 10:50 pm

^^ yep [Ni(CN)4]2- is tetracyanonickelate(II). As you can see the ligand is first with its prefix, then the transition metal with its Roman numeral, and it ends in -ate because of its negative charge.


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