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Ligands

Posted: Sat Jun 02, 2018 6:04 pm
by Allen Chen 1J
WHy do ligands have to have atleast one lone pair?

Re: Ligands

Posted: Sat Jun 02, 2018 6:09 pm
by Jack Martinyan 1L
Ligands have at least one donor atom with an electron pair used to form covalent bonds with the central atom.

Re: Ligands

Posted: Sun Jun 03, 2018 1:54 pm
by 304984981
they have to use lone pairs to form coordinative bondS with the TM ion.

Monodentate ligand is a lewis base that donates one lone pair of electrons to a TM ion to form a bond.
Biodentate ligand is a lewis base that donates 2 lone paris of electrons to a TM ion to form 2 bond.

Re: Ligands

Posted: Sun Jun 03, 2018 1:59 pm
by Andrew Evans - 1G
Yeah the lone pair is essentially what makes the molecule the ligand.
The ligand provides the lone pair to bond with the transition metal when the transition metal doesn't have an electron of its own to share.

-Andrew Evans
Section 1G

Re: Ligands

Posted: Sun Jun 03, 2018 2:42 pm
by Heung Ching Chia 1E
Ligands are lewis bases that donate a lone pair to the central transition metal in a complex to form a coordinate bond. That is why it needs at least one lone pair of electrons or it has no lone pair to donate to the central atom.

Re: Ligands

Posted: Sun Jun 03, 2018 2:45 pm
by Ziana Bhanji 1E
They must contain at least one pair of nonbonding electrons that can be donated to a metal ion.

Re: Ligands

Posted: Sun Jun 03, 2018 4:13 pm
by Natalie_Martinez_1I
Is this topic going to be on the final?

Re: Ligands

Posted: Sun Jun 03, 2018 5:14 pm
by Rummel Requerme 1E
Ligands must at least have one lone pair to donate to the central atom (hence creating a coordination between the two atoms).

Re: Ligands

Posted: Sun Jun 03, 2018 10:54 pm
by Amir Akhavan 1E
Ligands need to have at least one lone pair in order to bind to the metal and form a molecule.