Versatile Bottom-up Approach to Stapled π-Conjugated Helical Scaffolds: Synthesis and Chiroptical Properties of Cyclic o-Phenylene Ethynylene Oligomers (pages 13036–13040)
Dr. Noelia Fuentes, Ana Martin-Lasanta, Dr. Luis Alvarez de Cienfuegos, Prof. Dr. Rafael Robles, Dr. Duane Choquesillo-Lazarte, Prof. Dr. Juan M. García-Ruiz, Lara Martínez-Fernández, Dr. Inés Corral, Dr. María Ribagorda, Dr. Antonio J. Mota, Prof. Dr. Diego J. Cárdenas, Prof. Dr. M. Carmen Carreño and Dr. Juan M. Cuerva
Version of Record online: 14 NOV 2012 | DOI: 10.1002/anie.201206259
Spring loaded: The smallest members of a family of carbon nanocoils (CNCs), adopting a fixed helical structure, have been synthesized by introduction of one or two staples in o-phenylene ethynylene oligomers. The chiroptical responses of the systems having enantiopure L-tartrate-derived staples confirmed the induced helicity. Theoretical studies suggest that these CNCs are pseudoelastic.