Explain the geometrical isomerism of pt (ii) complexes.
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Platinum exhibits the tendency to form coordination complexes. Pt (II) forms complexes of square planar geometry. Square planar complexes are derived from octahedral complexes. They have coordination no. of 4 i.e surrounded by four ligands either same or different.
Geometrical isomers are shown by square planar complexes of type Ma2b2 and Ma2bc. Geometrical isomers are of two types, are cis and trans.
Cis isomer are those in which same type of ligands lie close to each other or the 2 same ligands located at minimum bond angle while in Trans isomer , the two same ligands are located at large bond angle.
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