title: Unusual mesomorphic behaviour of an ethynyl-substituted phthalocyanine.
abstract: An ethynyl-substituted nickel(II) phthalocyanine has been synthesised and its thermotropic properties studied; optical microscopy, differential scanning calorimetry (DSC) and X-ray diffraction (XRD) techniques revealed an unusual mesomorphic behaviour observed for the first time in phthalocyanine systems where each disk of the hexagonal columnar mesophase is formed by two ethynyl-substituted phthalocyanine units.
authors.affiliation: Departamento de Química Orgánica (C-I), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
authors.forename: Eva M
authors.initials: EM
authors.lastname: García-Frutos
authors.forename: Giovanni
authors.initials: G
authors.lastname: Bottari
authors.forename: Purificación
authors.initials: P
authors.lastname: Vázquez
authors.forename: Joaquín
authors.initials: J
authors.lastname: Barberá
authors.forename: Tomás
authors.initials: T
authors.lastname: Torres