naming ligands in alphabetical order

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Brian Tangsombatvisit 1C
Posts: 119
Joined: Sat Aug 17, 2019 12:15 am

naming ligands in alphabetical order

Postby Brian Tangsombatvisit 1C » Sat Dec 07, 2019 10:35 pm

When naming coordination compounds given their formula, just to make sure, for NC (isocyano) and NCS (isothiocyanato), when alphabetizing the ligands you would could the first letter of each of these ligands as "i," correct? So for [Fe(NC)3F3]6- it would be trifluorotriisocyanoferrate(VI)? (Just a made up complex ion)

Eesha Sohail 1D
Posts: 100
Joined: Sat Aug 17, 2019 12:16 am

Re: naming ligands in alphabetical order

Postby Eesha Sohail 1D » Sat Dec 07, 2019 10:58 pm

I believe this is correct. Here I don't think iso- counts as a prefix, it's part of the ligand's original name. Would you happen to know whether this alphabetical system is the same for writing out formulas? Or can we just write the ligands randomly?

Matt F
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

Re: naming ligands in alphabetical order

Postby Matt F » Sat Dec 07, 2019 11:05 pm

When writing the compound itself I don't believe order matters, so long as everything inside the brackets in inside and everything that should be outside is outside. Typically the transition metal cation is written first in the formula, but I'm not sure if that is absolutely required or just a formality


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