Naming rules

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kiara chan
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Joined: Fri Sep 24, 2021 5:36 am

Naming rules

Postby kiara chan » Thu Dec 02, 2021 8:51 am

I know that when the coordination sphere has a negative charge, I would end the transition metal with an "ate", but if it has a neutral or positive charge, do I need to add anything or do I leave the transition metal as is?
For example: [NiFBr(NH3)4]
would the answer be tetraamminebromofluoronickle(II) or tetraamminebromofluoronickl___(II)
Thank you!

WendyN_L2
Posts: 100
Joined: Fri Sep 24, 2021 5:47 am

Re: Naming rules

Postby WendyN_L2 » Thu Dec 02, 2021 9:38 am

You're correct the only rule when naming the transition metal is adding -ate if the overall charge of the coordination sphere is negative, if it is neutral or positive you do not need to change the name. Hope that helps

Ruben Adamov 1E
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Joined: Fri Sep 24, 2021 5:56 am

Re: Naming rules

Postby Ruben Adamov 1E » Thu Dec 02, 2021 11:47 am

If the complex is neutral or positive a suffix is not needed, so you can just write the normal name for that transitional metal.

Joelle Tran 1K
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Joined: Fri Sep 24, 2021 5:45 am

Re: Naming rules

Postby Joelle Tran 1K » Thu Dec 02, 2021 12:18 pm

When it is a cation or neutral, you do not need to add -ate to the name. You only add -ate when the overall charge of the compound is negative.

butteredbread
Posts: 102
Joined: Fri Sep 24, 2021 5:25 am

Re: Naming rules

Postby butteredbread » Thu Dec 02, 2021 1:01 pm

if the compound has no charge or a positive charge you don't have to add anything at the end of the metal!

Alessandra Marotta 3L
Posts: 50
Joined: Fri Sep 24, 2021 5:17 am

Re: Naming rules

Postby Alessandra Marotta 3L » Thu Dec 02, 2021 1:18 pm

Yes, if the coordination sphere is neutral or positive, you don't need to add any suffix to the metal. You only need to add -ate if the coordination sphere charge is negative.

Gavin Trent 2F
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Joined: Fri Sep 24, 2021 6:22 am

Re: Naming rules

Postby Gavin Trent 2F » Thu Dec 02, 2021 3:29 pm

You only need to add -ate if the overall charge of the complex is negative. Neutral and positive make no difference.

QUEP 2F
Posts: 101
Joined: Fri Sep 24, 2021 7:11 am

Re: Naming rules

Postby QUEP 2F » Thu Dec 02, 2021 4:35 pm

Hi!

You are correct—you only need to add the -ate suffix if the overall charge of the coordination sphere is negative. If it is neutral or positive, there is no need to change the name.

Shreya Arcot 3K
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Joined: Fri Sep 24, 2021 6:03 am

Re: Naming rules

Postby Shreya Arcot 3K » Fri Dec 03, 2021 2:03 am

No suffix is needed when the coordination sphere has a neutral or positive charge.

Rio Gagnon 1G
Posts: 106
Joined: Fri Sep 24, 2021 5:25 am

Re: Naming rules

Postby Rio Gagnon 1G » Fri Dec 03, 2021 1:23 pm

If the transition metal is positive or neutral, no change in the ending is necessary.

205819952
Posts: 100
Joined: Fri Sep 24, 2021 5:51 am

Re: Naming rules

Postby 205819952 » Fri Dec 03, 2021 2:29 pm

When the coordination sphere contains a neutral or positive charge, no suffix is required.

Benjamin Nguyen 1J
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Been upvoted: 1 time

Re: Naming rules

Postby Benjamin Nguyen 1J » Fri Dec 03, 2021 3:05 pm

If the coordination compound is neutral or positive, you can just name it regularly.

Jack Amos 2I
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Joined: Fri Sep 24, 2021 7:31 am

Re: Naming rules

Postby Jack Amos 2I » Fri Dec 03, 2021 3:22 pm

I'm not sure if it's typically implied, but whenever the textbook names a coordination complex with a positive or negative charge, it indicates that it is an ion by adding "ion" after the name of the complex. For example:

= hexacyanoferrate(II) "ion"


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