How to write structural formula order?

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Chem_Mod
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How to write structural formula order?

Postby Chem_Mod » Thu Sep 22, 2011 5:26 pm

Question: As far as naming coordination compounds goes, is there a special sequence to writing out the structural formula when you have to consider two or more ligands? For example, if I am asked about pentaaminesulfattocobalt(III), could I just write the NH3 group, before the SO4^2-, or is there a special sequence?

Chem_Mod
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Re: How to write structural formula order?

Postby Chem_Mod » Thu Sep 22, 2011 5:27 pm

Answer: Anionic ligands should be listed first, other than that there is no conventional order.

RaquelAvalos1K
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Re: How to write structural formula order?

Postby RaquelAvalos1K » Fri Nov 28, 2014 6:28 pm

Aren't neutral ligands before anionic ligands? Then the Transition metal?

Alexandra Bowling 1K
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Re: How to write structural formula order?

Postby Alexandra Bowling 1K » Tue Dec 02, 2014 6:09 pm

I also thought that you're supposed to write down the neutral ligands before the anionic ones.

Justin Le 2I
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Re: How to write structural formula order?

Postby Justin Le 2I » Wed Dec 03, 2014 10:14 pm

When writing out the formula, you write the cation transition metal first, then the anion ligands, then the neutral ligands.

michelleguan3a
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Re: How to write structural formula order?

Postby michelleguan3a » Sat Dec 13, 2014 2:03 pm

The textbook also says to list the ligands in alphabetical order in Toolbox 16.1 on page 683. Are we supposed to follow this method or the method of listing anionic ligands first and then neutral ones? Some websites online are saying to list the neutral ligands first and then anionic ones. Which method should we follow?

Websites saying to name neutral ligands before anionic ones:'
http://depts.washington.edu/chemcrs/bul ... _May28.pdf

http://www2.palomar.edu/users/ngeetha/1 ... lature.pdf

http://chemwiki.ucdavis.edu/Inorganic_C ... _Complexes


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