Coordination #

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105194078
Posts: 52
Joined: Thu Sep 19, 2019 12:17 am

Coordination #

Postby 105194078 » Thu Dec 05, 2019 10:35 pm

Can someone explain to me how to determine how many coordination numbers a molecule has? I'm currently doing some homework and need some clarification.

Zoya Mulji 1K
Posts: 105
Joined: Thu Jul 11, 2019 12:15 am

Re: Coordination #

Postby Zoya Mulji 1K » Thu Dec 05, 2019 10:46 pm

coordination # is the # of ligand molecules attached to the transition metal ion.

Sydney Jacobs 1C
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Re: Coordination #

Postby Sydney Jacobs 1C » Thu Dec 05, 2019 10:47 pm

Coordination number refers to the number of points to which ligands are attached to the central atom. For example, in [NiCl4]2-, the nickel is attached to 4 Cl- ligands, so the coordination number is 4.

Jocelyn Thorp 1A
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Re: Coordination #

Postby Jocelyn Thorp 1A » Fri Dec 06, 2019 12:48 am

Sydney Jacobs 1C wrote:Coordination number refers to the number of points to which ligands are attached to the central atom. For example, in [NiCl4]2-, the nickel is attached to 4 Cl- ligands, so the coordination number is 4.


so if there's only one molecule attached, but it's attached at 2 sites (chelating and bidentate) you would count the coordination number as 2?

Jacob Motawakel
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Re: Coordination #

Postby Jacob Motawakel » Fri Dec 06, 2019 1:21 am

The coordination number is the number of Ligands attached to the central transition metal

madijohnson_4A
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Re: Coordination #

Postby madijohnson_4A » Fri Dec 06, 2019 10:27 am

In question 9C.9 from the homework, why are the coordination numbers from part C and D 6?

Chetas Holagunda 3H
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Re: Coordination #

Postby Chetas Holagunda 3H » Fri Dec 06, 2019 1:05 pm

Think of it as how many Ligands are attached to the central metal cation. Each of those bonds added up equals the coordination number.


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