This in-class activity can be used to teach structural (or constitutional) isomers. This worksheet presumes that students have already had some experience with transition metal complexes such as determining metal oxidation state, recognizing the coordination sphere, and converting between formulas and structures.
A student should be able to
- recognize pairs of ionization, coordination, and linkage isomers
- describe the difference between ionization, coordination, and linkage isomers
I developed this short in-class activity this spring to take the place of a lecture on the topic. The students had already spent a couple of days learning about coordination complexes and stereoisomers. I handed out the in-class activity and asked them to work in groups of 2-3. I circulated to answer questions, and after about 5-10 minutes of work, I brought everyone back together and summarized the categories. I chose not to give them any introduction to structural isomers in the hopes that by working through the activity, the students would develop their own understanding of the types of isomers.