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Topic: What is this one called: Fe(SCN)3  (Read 53854 times)

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Offline NYM

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What is this one called: Fe(SCN)3
« on: September 25, 2006, 12:19:57 PM »
It is a complex:
 Fe(SCN)3

Something with thiocyanate and Fe(III)... but not quite sure what.

Help?
« Last Edit: September 25, 2006, 12:24:03 PM by Mitch »
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Offline Korokian

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Re: What is this one called: Fe(SCN)3
« Reply #1 on: September 25, 2006, 03:34:24 PM »
Iron (III) Thiocyanide
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Offline NYM

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Re: What is this one called: Fe(SCN)3
« Reply #2 on: September 26, 2006, 02:07:42 PM »
I don't think so, because:

"When naming a complex ion, the ligands are named before the metal ion."
http://en.wikipedia.org/wiki/Complex_%28chemistry%29

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Offline sdekivit

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Re: What is this one called: Fe(SCN)3
« Reply #3 on: September 26, 2006, 02:22:31 PM »
i also know this as iron(III)thiocyanate
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Offline Will

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Re: What is this one called: Fe(SCN)3
« Reply #4 on: September 26, 2006, 02:32:10 PM »
Quote from: NYM on September 26, 2006, 02:07:42 PM
I don't think so, because:

"When naming a complex ion, the ligands are named before the metal ion."
http://en.wikipedia.org/wiki/Complex_%28chemistry%29

This isn't a complex ion, there is no net charge. It would be known as iron(III)thiocyanate as sdekivit said.
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Offline NYM

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Re: What is this one called: Fe(SCN)3
« Reply #5 on: September 26, 2006, 03:34:40 PM »
hmm... hmm...
That could be. Maybe I just misunderstood the whole thing. The book says:
" Fe3+ + SCN- -> Fe(SCN)2+ "
(which is a complex)
"if [SCN-] >> [Fe3+], then"
... "Fe(SCN)3"

Thank you!

EDIT: Scooby Snacks for all of you :)
EDIT^2: Oops, I forgot. Is Fe(SCN)3 easily soluble?
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Online Borek

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Re: What is this one called: Fe(SCN)3
« Reply #6 on: September 26, 2006, 04:04:45 PM »
Quote from: Will on September 26, 2006, 02:32:10 PM
This isn't a complex ion, there is no net charge.

I don't recall such a rule.

Fe3+ + SCN- <-> FeSCN2+
FeSCN2+ + SCN- <-> Fe(SCN)2+
Fe(SCN)2+ + SCN- <-> Fe(SCN)3
Fe(SCN)3 + SCN- <-> Fe(SCN)4-
Fe(SCN)4- + SCN- <-> Fe(SCN)52-
Fe(SCN)52- + SCN- <-> Fe(SCN)63-

Is Fe(SCN)3 complex ion, or not?

For me question is ambiguous.
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Online Borek

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Re: What is this one called: Fe(SCN)3
« Reply #7 on: September 26, 2006, 04:05:22 PM »
Quote from: NYM on September 26, 2006, 03:34:40 PM
EDIT^2: Oops, I forgot. Is Fe(SCN)3 easily soluble?

I think so.
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Offline NYM

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Re: What is this one called: Fe(SCN)3
« Reply #8 on: September 27, 2006, 01:50:13 AM »
Quote from: Borek on September 26, 2006, 04:04:45 PM
Quote from: Will on September 26, 2006, 02:32:10 PM
This isn't a complex ion, there is no net charge.

I don't recall such a rule.

If it's at complex ion, then there ought to be some kind of charge, right?
That's what I thought.
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Online Borek

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Re: What is this one called: Fe(SCN)3
« Reply #9 on: September 27, 2006, 03:09:52 AM »
Quote from: NYM on September 27, 2006, 01:50:13 AM
If it's at complex ion, then there ought to be some kind of charge, right?

Sorry, missed that ion part, but IMHO it is irrelevant here. The compound is either a salt or complex and different rules govern its naming. Whether it is charged or not doesn't help in classification.
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Offline AWK

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Re: What is this one called: Fe(SCN)3
« Reply #10 on: September 27, 2006, 04:02:18 AM »
Fe(SCN)3 is a compound soluble in water, it can be a complex compound, eg in the crystal, since nitrogen atoms of thiocyanide group can complex other iron atoms, but then the  name of compund will be much more composite.
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