Molecular Borromean Rings. Borromean rings are three interlocked rings that rely on the presence of all three components to stay together. In the article by Stoddart and co-workers, students synthesize a Borromean link in molecular form during a laboratory project that incorporates synthetic organic, physical organic, inorganic, metallo-organic, supramolecular, and dynamic covalent chemistry. As shown on the cover, the Borromean rings can be represented in many ways: as a planar Venn diagram, in an orthogonal arrangement, and with a chemical twist (where the transition metals are imbedded in the nodes, or binding sites). In addition, an X-ray crystal structure of the synthesized Borromean rings is depicted in a tubular and a space-filling representation.
Our Secondary School editors work hard to distill all the JCE materials to produce a fraction of particular interest to high school teachers. We call it CLIC.
In recent years we have worked hard to better match our advertisers with our readers. When shopping for chemistry education materials, visit our advertisers' WWW sites first.
Take JCE along on your outreach missions. Copies of the Journal, guest access to JCE Online, our publications catalog, and more are available for your participants.