polydentate

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yast_27
Posts: 29
Joined: Fri Sep 28, 2018 12:19 am

polydentate

Postby yast_27 » Fri Dec 07, 2018 5:13 pm

I just wanted to make sure that i did get this right:

Basically to find out if a compound is polydentate and how many bonds it makes with the central atome (transition metal) we are suppose to count the number of lone pair on this compound and it will give us the # of bound created?

Chem_Mod
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Joined: Thu Aug 04, 2011 1:53 pm
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Re: polydentate

Postby Chem_Mod » Sat Dec 08, 2018 5:55 pm

Not quite. Generally atoms like Nitrogen and oxygen can act as binding sites if they have a lone pair and are in the correct orientation.

paytonm1H
Posts: 74
Joined: Fri Sep 28, 2018 12:18 am

Re: polydentate

Postby paytonm1H » Sat Dec 08, 2018 6:18 pm

Transition metals can have expanded valence shells, so the ligands act as Lewis bases (donate electrons) to form coordinate covalent bonds. To find the coordination number, add up all the ligands attached to the central ion. Bidentate would attach at two places, so a bidentate ligand would count as two, trisdentate as three...


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