How to Compare the Coordination Complex Stability – Part 1

A coordination complex is a chemical compound made of a central atom/ion (usually metallic) called the coordination center and a surrounding array of bound molecules/ions referred to as ligands or complexing agents.


Coordination complexes typically having transition metals or d-block elements in the periodic table are known as metal-ligand complexes (MLCs).

Chelation, a type of bonding and sequestration of metal atoms, involves ≥ 2 separate dative/coordinate covalent bonds between a ligand and a metal atom, forming a ring.

Question:

Arrange the following in the increasing order of stability: [Ni(tn)3]2+, [Ni(en)3]2+ & [Ni(NH3)6]2+.

Solution infographic:



Click to enlarge the image

Complexes look simple now❓ Let Chemaficionado know at mychemistryhomework@gmail.com❗

References:

(1)    Wikipedia Contributors. Coordination complex. Wikipedia. https://en.wikipedia.org/wiki/Coordination_complex.

(2)    Wikipedia Contributors. Chelation. Wikipedia. https://en.wikipedia.org/wiki/Chelation.‌

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