polydentate and shape

[Anisha Chandra 1K]

How should we take molecular shape into account when deciding how many binding sites a polydentate ion has?

[LReedy_3C]

I think most polydentates form chelate shapes, so if you see this shape there is more than one bonding site being occupied. I'm not sure how to determine the exact number.

[ishaa Diwakar 4E]

It is also important to notice whether there are single or double bonds around the atoms with lone pairs, since only single bonds can rotate to form multiple ligands. For example, NH2-CH2-CH2-NH2 has single bonds attaching the Ns, so it can form a shape like \__/, which can be bidentate.

[Joowon Seo 3A]

Polydentate shapes are like rings since they have multiple bonding sites.