Question

Draw the structures of all possible isomers for the following complexes. Indicate which isomers are enantiomer pairs.

(a) Diamminebromochloroplatinum(II) (square-planar)

Short answer

Diamminebromochloroplatinum(II) has two possible isomers which do not exist as enantiomers pairs.

Step-by-step solution

Enantiomers

Enantiomers are the pair of compounds that are stereoisomers and are "non-superimposable mirror images" of each other. They rotate the PPL (plane-polarized light) in "equal & opposite" directions.

Isomers of Diamminebromochloroplatinum(II)

The given coordination compound diamminebromochloroplatinum(II) has four ligands (two ammines, one chlorine, and one bromine) attached to central platinum metal is a square planar complex that has two possible isomers (cis in which the two ammines on the same side and trans in which two ammine on the opposite side) shown as follows:

Isomers of diamminebromochloroplatinum(II)

The given complex is square planar and has no plane of symmetry; therefore, these two pairs of isomer's mirror images do not exist as enantiomer pairs.