IntroductionSince the discovery of natural enediynes and their biological ability to act as antitumor antibiotics1through the formation of a cytotoxic benzenoid biradicalviaa Bergman cyclisation,2strong efforts have focused on the construction of simple enediyne compounds mimicking the natural specimen.1As 9­ or 10­membered ring enediynes3are extremely unstable, we are interested in the elaboration of simple acyclic enediynes.4Here, we describe the preparation and interesting solid state structure of the hitherto unknown enediyne3. Whereas linear or tetrahedral tectons have been extensively studied due to their role in the formation of 2D or 3D nets,5V­shaped tectons have received much less attention. The latter building blocks have been shownto form screw­type chains, mostly, however, in presence of other V­shaped counterparts.6To the best of our knowledge, enediyne3is the first example of a V­shaped tecton to form double screws in the solid state with itself.