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Question
A coordination complex [MX2L2], has a CN=4 and two unidentate ligands X and L. When the two ligands are arranged opposite to each other in its geometry, it is called ____ isomer.
A coordination complex [MX2L2], has a CN=4 and two unidentate ligands X and L. When the two ligands are arranged opposite to each other in its geometry, it is called ____ isomer.
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Solution
The correct option is B trans
For a CN of 4, the shape of the complex can be either tetrahedral or square planar. Tetrahedra complexes do not exhibit geometrical isomerism as the arrangement of every Ligand around central metal atom/ion in space is equivalent in every respect. Hence, the shape of the complex will be square planar.
In square planar structure, the two X or Y unidendate ligands can be placed either opposite to or next to each other.
If X and Y are opposite to each other,then both Xs or Ys will be adjacent to each other and will have a cis structure. If both X or Y are opposite , the structure is trans.
Hence option (b) is the correct answer.
For a CN of 4, the shape of the complex can be either tetrahedral or square planar. Tetrahedra complexes do not exhibit geometrical isomerism as the arrangement of every Ligand around central metal atom/ion in space is equivalent in every respect. Hence, the shape of the complex will be square planar.
In square planar structure, the two X or Y unidendate ligands can be placed either opposite to or next to each other.
If X and Y are opposite to each other,then both Xs or Ys will be adjacent to each other and will have a cis structure. If both X or Y are opposite , the structure is trans.
Hence option (b) is the correct answer.
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