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Explain the concept of isomerism in coordination complexes?

Explain the concept of isomerism in coordination complexes?

Grade:12

1 Answers

Pankaj
askIITians Faculty 131 Points
7 years ago

  • somerism in coordination compounds:

1. Structural Isomerism:

a.Ionization Isomerism: Exchange of ligands between coordinate sphere and ionization sphere

[Pt(NH3)4Cl2]Br2&[Pt(NH3)4Br2]Cl2

b.Hydrate Isomerism: Exchange of water molecules between coordinate sphere and ionization sphere

[Cr(NH3)3(H2O)3]Br3& [Cr(NH32)3(H2O)2Br]Br2H2O

c.Linkage Isomerism: Ambient legend binds from the different binding sites to the metal atom.

K2[Cu(CNS)4] & K2[Cu(SCN)4]

d.Coordination Isomerism: Exchange of the metal atom between coordinate sphere and ionization sphere when both are complex ions.

[Cr(NH3)6][CoF6] & [Co(NH3)6][CrF6].

e.Ligand Isomerism: Different isomers of the same ligands attached to the metal.

[Co(pn)2Br]Cl2& [Co(tn)2Br]Cl2Where,

pn=1,2-Diaminopropane.

tn = 1,3-Diaminopropane.

2. Stereoisomerism:

a.Geometrical Isomerism:When two similar ligands are on adjacent position the isomer is called cis isomer while hen they are on opposite positions, the isomer is called trans isomer.

b.Optical Isomerism:In order to show optical isomerism, the complex should form a non superimposible mirror image which rotates the place of polarized light in opposite direction.

Thanks & Regards

Pankaj Singh

askIITians Faculty


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