(S)-1-Methylheptyl 2-[4-(4-dodecyloxybenzoyloxy)phenyl]-pyrimidine-5-carbox
ylate and its racemic modification are synthesised; miscibility studies, in
vestigations of defect textures, differential scanning calorimetry and elec
trical field studies show that this material exhibits an antiferroelectric
twist grain boundary TGBC*(A) analogue of the Abrikosov flux phase found in
superconductors.