A coordination complex is formed by the reaction of with dimethylglyoxime () in a basic medium. The extraordinary stability of the rosy-red complex is primarily due to:

Question

A coordination complex is formed by the reaction of $Ni^{2+}$ with dimethylglyoxime ($dmg^-$) in a basic medium. The extraordinary stability of the rosy-red complex $[Ni(dmg)_2]$ is primarily due to:

Prashant Kotian · Accepted Answer

Correct answer: C. The square planar complex forms highly stable pseudo-macrocyclic chelate rings heavily stabilized by strong intramolecular O-H...O hydrogen bonds [10, 18].

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