9C7

[Jaci Glassick 2G]

Which of the following isomers of diaminobenzene can form chelating complexes? Explain your reasoning.

I'm slightly confused by this. Can someone please explain this to me? Thank you!

[Rachel Yu 1G]

Chelates are ligands that can bind to the same metal center atoms at two or more points. B is the only isomer that can for chelating complexes because the two amino groups are close enough to bind to the same metal center atom. In a and c, the amino groups can bind to two different metal centers, but this would not be a chelate.

[Audrie Chan-3B]

If two amino groups are close enough to attach to the same metal ion, then it can form a chelating complex. You can think of it as whether or not the groups can form a ring through one metal ion.