Cis-trans isomerism is found in square planar complexes of the molecular formula (a and b are monodentate ligands):

Question

Cis-trans isomerism is found in square planar complexes of the molecular formula (a and b are monodentate ligands): (A) Ma 4 (B) Ma 3 b (C) Ma 2 b 2 (D) Mab 3

Tardigrade Admin · Accepted Answer

For square planar complexes Ma 4, Ma 3 b or Mab 3 where a and b etc, are monodentate ligands, geometrical isomerism is not possible. However, square planar complexes of the type Ma 2 b 2, Ma 2 bc , Mabcd and M ( AA )2, M ( AB )2 where AA and AB represent symmetrical and unsymmetrical chelating agents - do give geometrical isomers. A few examples are given below. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/9b076e71645d0c13f7e182018f618787-.png" />

Q. Cis-trans isomerism is found in square planar complexes of the molecular formula ( $a$ and $b$ are monodentate ligands):

$M a_{4}$

$M a_{3} b$

$M a_{2} b_{2}$

$M a b_{3}$

Q. Cis-trans isomerism is found in square planar complexes of the molecular formula (a and b are monodentate ligands):

Ma4​

Ma3​b

Ma2​b2​

Mab3​

Q. Cis-trans isomerism is found in square planar complexes of the molecular formula ( $a$ and $b$ are monodentate ligands):

$M a_{4}$

$M a_{3} b$

$M a_{2} b_{2}$

$M a b_{3}$