Draw all the isomers of dichlorobis(ethylenediamine)chromium(III).

Strategy As in Example 19.4, determine the arrangements of the ligands that will form diff erent complexes. Examine each to determine whether the mirror images are superimposable.

Example 19.4

How many geometric isomers exist for the octahedral complex [Ru(H₂O)₂Cl₄]? Name each isomer.
Strategy Determine the arrangements of the ligands that will form different complexes.
Be careful that each “new” possibility is not the same as an earlier example in which the complex is simply rotated.