137225-53-7Relevant academic research and scientific papers
Unusual Smetic-A Layering in a Homologous Series of Isothiocyanato Compounds
Heppke, G.,Pfeiffer, S.,Ranft, A.,Shashidhar, R.
, p. 31 - 36 (2007/10/02)
The smetic-A (SmA) phases exhibited by several homologs belonging to the newly synthesized 4-isothiocyanatophenyl-4'-n-alkyloxybenzoate series (n.O.NCS) show unusual features.Although the X-ray studies show that the layer thickness/molecular length ratio (d/l) of the lower homologs is less than 1 indicating a monolayer packing, dielectric studies reveal the existence of strong antiparallel correlations near the isotropic-SmA phase transition, a feature that has hitherto not been observed for any polar monolayr SmA phase.Miscibility studies prove that the SmA phase of these materials is miscible with both the monolayer (SmA1) and the partial bilayer (SmAd) phases.
