(i)
(ii)
(iii)
The relationship between the pair of compounds shown above is respectively,
(i)
(ii)
(iii)
The relationship between the pair of compounds shown above is respectively,
- enantiomer,diastereomer,diastereomer
- enantiomer,enantiomer,diastereomer
enantiomer,homomer(identical),diastereomer
The Correct Option is C
Solution and Explanation
The correct answer is option (C): enantiomer,homomer(identical),diastereomer
Enantiomers are the stereoisomers which are non-superimposable mirror images of each other. Enantiomers have opposite configurations at the respective asymmetric centre.
These molecules have the same configuration. So, they are identical.
Diastereoisomers are non-identical non-mirror images of each other having the same bonding sequence. They arise when two or more non-mirror stereoisomers of a compound have different configurations at one or more (not all) of the respective stereocentres.
Structural isomers have different connectivity of atoms/species.
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Concepts Used:
Isomerism in Coordination Compounds
Isomers in Coordination Compounds
Stereoisomers occur when the ligands have the same bonds, but the bonds are in different orientations relative to one another. Structural isomerism occurs when the bonds are different. Isomers are distinct compounds that can have different physical properties such as color, crystal structure, and melting point.
Cis and Trans Stereoisomers
In octahedral complexes—with four of one ligand and two of another—and square planar complexes—with two of one ligand and two of another—there are two different arrangements of the same atoms with the same bonds. These different arrangements are called cis and trans. In cis molecules, the two ligands are on the same side of the complex. In trans molecules, the similar ligands are on the opposite sides of the molecules, meaning the bond angle is 180 degrees.
Optical Stereoisomers
Optical isomerism occurs when a molecule is not superimposable with its mirror image.
Fac and Mer Stereoisomers
When three identical ligands occupy one face of an octahedron, the isomer is said to be facial or fac. If these three ligands and the metal ion are in one plane, the isomer is said to be meridional or mer.