Jump to main content
Jump to site search

Issue 14, 2008
Previous Article Next Article

Mesomorphic 1,2,4-triazine-4-oxides in the synthesis of new heterocyclic liquid crystals

Author affiliations

Abstract

New liquid-crystalline materials are described, which are obtained using a versatile synthetic methodology that employs the intermediacy of 1,2,4-triazines. Triazines, triazine-N-oxides, pyridine and laterally cyanated pyridines are among the compounds reported and the mesomorphism of the different structures shows how function affects mesomorphism. In particular, systems based on laterally cyanated pyridines turn out to be materials with low melting points and wide phase ranges. Lateral dipole moments, calculated at the Hartree–Fock level for the triazine-N-oxides and the cyanopyridines, showed a significant dependence on conformation and confirmed that the dipole moment was great for the latter materials. Appreciable spontaneous polarisation was measured for chiral derivatives of the triazine-N-oxides.

Graphical abstract: Mesomorphic 1,2,4-triazine-4-oxides in the synthesis of new heterocyclic liquid crystals

Back to tab navigation

Publication details

The article was received on 29 Nov 2007, accepted on 23 Jan 2008 and first published on 19 Feb 2008


Article type: Paper
DOI: 10.1039/B718432H
Citation: J. Mater. Chem., 2008,18, 1703-1710
  •   Request permissions

    Mesomorphic 1,2,4-triazine-4-oxides in the synthesis of new heterocyclic liquid crystals

    V. N. Kozhevnikov, S. J. Cowling, P. B. Karadakov and D. W. Bruce, J. Mater. Chem., 2008, 18, 1703
    DOI: 10.1039/B718432H

Search articles by author

Spotlight

Advertisements