Banana-calamitic dimers: unexpected mesophase behaviour by variation of the direction of ester linking groups in the bent-core unit

@inproceedings{Tamba2010BananacalamiticDU,
  title={Banana-calamitic dimers: unexpected mesophase behaviour by variation of the direction of ester linking groups in the bent-core unit},
  author={Maria Gabriela Tamba and Ute Baumeister and Gerhard Pelzl and Wolfgang Weissflog},
  year={2010}
}
A five-ring bent-core unit and a phenyl benzoate moiety are linked together by means of a flexible spacer. Starting from dimers having different length of the aliphatic parts, that is the terminal alkyloxy chains and the spacer, the direction of each of the four ester connecting groups in the bent-core unit is reversed step by step. In this way thermodynamically stable polar and non-polar mesophases in unusual sequences could be obtained. For instance, a SmCsPAF–SmCs´PAF transition and the… CONTINUE READING