Unusual mesomorphic behaviour of an ethynyl-substituted phthalocyanine.
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.
García-Frutos
Eva M
EM
Departamento de Química Orgánica (C-I), Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
Bottari
Giovanni
G
Vázquez
Purificación
P
Barberá
Joaquín
J
Torres
Tomás
T