cool shapes: OK, this is where it starts getting really interesting. This subset of the database includes some of the most incredible structures we could find. During our studies, we looked at thousands of structures and have selected some truly amazing ones. Many of these structures could never have been predicted and attest to the rich variety of molecular structures that are found in nature. Many have fancy names, but not all. Can you figure out some of the names where we were stumped? Let us know, and we'll credit you. Do you know of other cool structures you would like to see here? Give us a clue, and we will look for the experimental data.