Definition of a Ligand

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Sofia Q
Posts: 49
Joined: Sat Aug 17, 2019 12:15 am

Definition of a Ligand

Postby Sofia Q » Fri Nov 22, 2019 2:14 pm

Could someone explain what an ligand is?

Jacob Puchalski 1G
Posts: 97
Joined: Fri Aug 09, 2019 12:16 am

Re: Definition of a Ligand

Postby Jacob Puchalski 1G » Fri Nov 22, 2019 2:31 pm

I'm pretty sure it's just a molecule attached to a central metal ion.

nickianel_4b
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Definition of a Ligand

Postby nickianel_4b » Fri Nov 22, 2019 4:47 pm

Yes, it's an ion or molecule attached to a metal atom, and together they form a coordination compound.

Sean Cheah 1E
Posts: 105
Joined: Wed Sep 18, 2019 12:20 am

Re: Definition of a Ligand

Postby Sean Cheah 1E » Fri Nov 22, 2019 8:18 pm

In this context, a ligand is a Lewis base (electron pair donor) that can form coordinate covalent bonds with transition metal cations. To make things confusing, ligands take on an entirely different definition in the context of biochemistry (cell signaling, enzymatic reactions, etc.).

Lindsey Chheng 1E
Posts: 110
Joined: Fri Aug 30, 2019 12:16 am

Re: Definition of a Ligand

Postby Lindsey Chheng 1E » Fri Nov 22, 2019 8:38 pm

Ligands must fit two criteria:
a. must have a neutral or negative charge
b. must have at least one pair to donate


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