definition

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George_Zhu
Posts: 29
Joined: Mon Jun 17, 2019 7:23 am

definition

Postby George_Zhu » Wed Jul 24, 2019 10:30 am

what is the definition of ligand and bidentate ligand ?

Brian Kwak 1D
Posts: 88
Joined: Fri Sep 28, 2018 12:17 am

Re: definition

Postby Brian Kwak 1D » Wed Jul 24, 2019 11:03 am

Ligands are ions or neutral molecules that bond to a central metal atom or ion. Ligands act as Lewis bases (electron pair donors), and the central atom acts as a Lewis acid (electron pair acceptor). Ligands have at least one donor atom with an electron pair used to form covalent bonds with the central atom.

Bidentate ligands have two donor atoms which allow them to bind to a central metal atom or ion at two points. Common examples of bidentate ligands are ethylenediamine (en), and the oxalate ion (ox).
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2AA0CAB7-6C09-412D-B3D7-366BB800DBE9.png
Example of a bidentate ligand. Ethylenedianime
2AA0CAB7-6C09-412D-B3D7-366BB800DBE9.png (3.65 KiB) Viewed 190 times


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