Oganesson is one of the 25 elements that have yet to be observed in a crystal structure. It is a synthetic element, which means it does not occur naturally on earth. Making oganesson is a very difficult process as synthetic elements are radioactive and decay rapidly into lighter elements. Millions of atoms of calcium and californium are smashed together and scientists must try to identify the one or two atoms of oganesson that form in the fallout. Since 2005 less than 6 atoms of oganesson have been identified in experiments around the world! Given oganesson currently has the highest atomic mass number of all known elements (118), it seemed appropriate to select the structure with the highest number of elements present in it in our database! This crystal is a catalyst, which is a material that changes how quickly or how slowly a chemical reaction occurs, but isn't permanently changed itself. In this case, getting carbon atoms from different molecules to join together is the reaction of interest, due to applications in pharmaceutical industry.
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