Fe------ferrate?  [ENDORSED]

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Postby D-nice1D » Wed Jul 24, 2019 8:47 pm

In the compound [Fe(CN)6] 4- the name is hexacyanidoferrate

1)why isn't the cyanido just cyano?
2}how does the iron turn to ferrate?

David Zhang 1B
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Re: Fe------ferrate?

Postby David Zhang 1B » Wed Jul 24, 2019 10:24 pm

I think that's just the names that are used for naming these compounds. Cyano and cyanido are the same compound but cyano is just the older term. For iron, the Fe in the periodic table stands for ferrum, the Latin word for iron.

Sisi Li 1F
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Re: Fe------ferrate?

Postby Sisi Li 1F » Thu Jul 25, 2019 3:24 pm

For iron, when it has a negative charge, the name becomes ferrate- this is the latin term.

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Re: Fe------ferrate?  [ENDORSED]

Postby somyapanchal1D » Thu Jul 25, 2019 6:13 pm

1) Cyanido and cyano are interchangeable. So if the ligand is a negative charge, you can end it in -o or -ido.
2) Since the overall charge is negative, the metal always has to end in -ate. But, it's not "ironate", it's ferrate (the latin name). Similarly, the metal copper becomes cuprate if it's overall charge is negative.

Yilun Ding
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Re: Fe------ferrate?

Postby Yilun Ding » Fri Jul 26, 2019 3:13 pm

Cyanido is the new name for cyanide, also, when the complex is negatively charged, the metal cation will need to add ate. Iron is an exception that it will change its name to ferrate.

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Re: Fe------ferrate?

Postby AdamH02 » Fri Jul 26, 2019 3:21 pm

For iron the Latin name is used and so it becomes ferrum. If the whole coordination compound is negative then we add the -ate suffix.

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Re: Fe------ferrate?

Postby Kguox1B » Fri Jul 26, 2019 7:03 pm

So if unless told/shown that it is negative, it will always be Ferrum?

Radha Patel 4I
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Re: Fe------ferrate?

Postby Radha Patel 4I » Sun Jul 28, 2019 11:46 pm

All anionic complexes have the transition metal ending in "ate"
The complex [Fe(CN)6] 4- has an anionic charge of 4- making the Fe--- Ferrate.
Im not absolutely sure about cyano, but I think it is because it is a charge of -1, making it also an anion. And for neutral atoms it would be cyanide.

Gwynneth Orlino 1B
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Re: Fe------ferrate?

Postby Gwynneth Orlino 1B » Mon Jul 29, 2019 1:34 pm

Metals in an anionic complex end in -ate. Iron is ferrate, copper is cuprate, lead is plumbate, silver is argentate, gold is aurate, and tin is stannate. For example, in the compound K3 Fe(CN)6, K3 is the cation and Fe(CN)6 is the anion. Iron's name in an anionic complex is ferrate, so it would be named Potassium hexacyanoferrate(III).

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