When Does Complexation Reaction Occur?

A chemical reaction that takes place between a metal ion and a molecular or ionic entity known as a ligand that contains at least one atom with an unshared pair

unshared pair
In chemistry, a lone pair refers to a pair of valence electrons that are not shared with another atom in a covalent bond and is sometimes called an unshared pair or non-bonding pair. Lone pairs are found in the outermost electron shell of atoms. ... They are also referred to in the chemistry of Lewis acids and bases.
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of electrons.

What makes a Complexation reaction?

A complexation reaction can be described as a reaction that forms a "complex". For instance, in adding a cobalt salt, such as CoCl2(s), to water, we form [Co(H2O)6]2+(aq). ... Complexes generally form around a transition metal cation (ex: Ni2+, Au3+, Cu+).

How does Complexation work in chemistry?

Complexation occurs when biopolymers are oppositely charged and therefore attract each other, which is a fact that can be controlled by changing the pH conditions.

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