Template:Oroboros picture of the month

Full Circle This image was created for the cover of an issue of "Angewandte Chemie" that featured an article on geometric and electronic connections between different types of pericyclic reactions. The background is a page from Woodward and Hoffmann's classic Conservation of Orbital Symmetry. The circle is an orobouros - a mythical serpent eating its own tail - that was created by Prof. Tantillo in response to a suggestion by Roald Hoffmann; and emphasizes both the cyclic nature of pericyclic transition structures as well as the fact that the article accompanying this illustration marked Roald's return to the topic of simple pericyclic reactions of hydrocarbons, nearly three decades after he first described many of their key electronic features. (Dean J Tantillo -link) Oroboros pictures of the month page