title: Twists in mesomorphic columnar supramolecular assemblies.
abstract: This tutorial review provides insight into helical columnar assemblies based on thermotropic as well as lyotropic liquid crystals on the basis of the structural characteristics that promote hierarchical self-organization. The structural features of molecular materials that can present helical organizations imply the action of different driving forces that include pi-interactions, hydrogen bonding or metal-coordination. In addition, columnar liquid crystals offer the possibility of combining these interactions towards the control of the geometry and orientation of the supramolecular organization leading to well-defined helical columnar assemblies.
authors.affiliation: Instituto de Ciencia de Materiales de Aragón, Química Orgánica, Facultad de Ciencias, Universidad de Zaragoza-CSIC, Spain.
authors.forename: Francisco
authors.initials: F
authors.lastname: Vera
authors.forename: José
authors.initials: J
authors.lastname: Luis Serrano
authors.forename: Teresa
authors.initials: T
authors.lastname: Sierra