Inversion of Supramolecular Helicity in Oligo‐p‐phenylene‐Based Supramolecular Polymers: Influence of Molecular Atropisomerism1. Issue 5 (18th December 2013)

• Record Type: Journal Article
• Authors: Aparicio, Fátima; Nieto‐Ortega, Belén; Nájera, Francisco; Ramírez, Francisco J.; López Navarrete, Juan T.; Casado, Juan; Sánchez, Luis
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 5(2014)
• Page Start: 1373
• Page End: 1377
• Publication Date: 2013-12-18
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201309172
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The helical organization of oligo‐<italic>p</italic>‐phenylene‐based organogelators has been investigated by atomic force microscopy, circular and vibrational circular dichroism, and Raman techniques. Whilst OPPs with more than two phenyl rings in the core self‐assemble into left‐handed helices, that with a biphenyl core shows an inversion of the supramolecular helicity depending on the formation conditions through the atropisomerism of the biphenyl central unit. The results presented herein outline a new example of kinetically controlled modulation of supramolecular helicity.</p> </abstract>