Naming ions

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Amy Luong 1L
Posts: 11
Joined: Fri Sep 26, 2014 2:02 pm

Naming ions

Postby Amy Luong 1L » Wed Dec 03, 2014 4:00 pm

When do we know whether or not to include "ion" at the end of the coordination compound?

Alan Begian 3F
Posts: 11
Joined: Fri Sep 26, 2014 2:02 pm

Re: Naming ions

Postby Alan Begian 3F » Wed Dec 03, 2014 4:47 pm

When a complex has an overall negative or positive charge, "ion" is written after it. This is not needed if it is neutral or part of a coordination compound

Ex: [Cr(OH)4]-

Name: tetrahydroxochromate(III) ion
Last edited by Alan Begian 3F on Wed Dec 03, 2014 7:32 pm, edited 1 time in total.

Evan Huang 1L
Posts: 3
Joined: Fri Sep 26, 2014 2:02 pm

Re: Naming ions

Postby Evan Huang 1L » Wed Dec 03, 2014 6:13 pm

It can also be a complex with an overall positive charge, for example

[Ni(en)3]3+

has the name: Triethylenediamine Nickel (III) ion

Justin Le 2I
Posts: 142
Joined: Fri Sep 26, 2014 2:02 pm

Re: Naming ions

Postby Justin Le 2I » Wed Dec 03, 2014 10:28 pm

Evan Huang 3L wrote:It can also be a complex with an overall positive charge, for example

[Ni(en)3]3+

has the name: Triethylenediamine Nickel (III) ion


The name should actually be tris(ethylenediamine)nickel(III) ion because en is bidentate and there are three of them.


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