Ligand Order

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EricZhao3G
Posts: 51
Joined: Tue Oct 08, 2019 12:16 am

Ligand Order

Postby EricZhao3G » Thu Nov 28, 2019 1:37 am

When writing the molecule formula for the coordination compound, should the neutral or negative ligand go first? Here, Dr. Lavelle says to put the anionic ligand first but I think what is conventional has changed since then but I'm not sure: viewtopic.php?f=45&t=1409

Paige Lee 1A
Posts: 136
Joined: Sat Sep 07, 2019 12:16 am

Re: Ligand Order

Postby Paige Lee 1A » Thu Nov 28, 2019 2:16 pm

If the overall charge is negative, put the ion in front of the [] brackets
If the overall charge is positive, put the ion after the [] brackets

Arianna Perea 3H
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Ligand Order

Postby Arianna Perea 3H » Fri Nov 29, 2019 4:21 pm

Why is dichloro first in dichlorobis(ethylenediamine)platinum (IV) chloride?

Rodrigo2J
Posts: 102
Joined: Sat Jul 20, 2019 12:16 am

Re: Ligand Order

Postby Rodrigo2J » Fri Nov 29, 2019 7:24 pm

I'm pretty sure Dr. Lavelle said to simply name the complex in alphabetical order.

Matthew Chan 1B
Posts: 111
Joined: Sat Sep 07, 2019 12:16 am

Re: Ligand Order

Postby Matthew Chan 1B » Sat Nov 30, 2019 2:05 am

Do we arrange on the basis of the element's letters or the names of element/compounds?

erica thompson 4I
Posts: 55
Joined: Wed Sep 18, 2019 12:21 am

Re: Ligand Order

Postby erica thompson 4I » Sat Nov 30, 2019 1:28 pm

In lecture Lavelle said that the order is: "(Greek prefix)" + "ligand names in alphabetical order" + "transition metal cation name" + "Roman numeral"

If there are anions, it goes: "anion name" + "(Greek prefix)" + "hydrate"


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