Question
Define isomerism and tell its types.
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Answer
Isomerism : Two or more such compounds which have the same chemical formula (molecules) but have different arrangement of atoms are called isomers of each other and this property is called isomerism. Due to different arrangements of atoms, there is variation in one or more of their physical or chemical properties. There are two main types of isomerism in coordination compounds, which can again be classified into several parts :
(a) Stereoisomerism :
(1) Geometric isomerism
(2) Polarization isomerism
(b) Structural isomerism :
(i) Bond isomerism
(ii) Subcovalent isomerization or coordination isomerism
(iii) Ionization isomerism
(iv) Solvation isomerism or hydrate isomerism
(v) Ligand isomerism
(vi) Polymerization isomerism
(vii) Coordination position isomerism.
(a) Stereoisomerism :
(1) Geometric isomerism
(2) Polarization isomerism
(b) Structural isomerism :
(i) Bond isomerism
(ii) Subcovalent isomerization or coordination isomerism
(iii) Ionization isomerism
(iv) Solvation isomerism or hydrate isomerism
(v) Ligand isomerism
(vi) Polymerization isomerism
(vii) Coordination position isomerism.
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