The role of the alien proton acceptor on the formation of LC structure in H-bonded monomeric and polymeric derivatives of alkoxybenzoic acids

✍ Scribed by Alina M. Shatalova; Horst Kresse; Georgii A. Shandryuk; Galina N. Bondarenko; Sergei A. Kuptsov; Raisa V. Talroze

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 222 KB
• Volume: 708
• Category: Article
• ISSN: 0022-2860
• DOI: 10.1016/j.molstruc.2004.03.062

✦ Synopsis

The formation of the complex between 4-cyanopyridine and 4-(6-acryloyloxy-hexyloxy) benzoic acid and its polymeric analog proceeds due to the proton transfer with the H-bond formation. The presence of two proton acceptor groups within one molecule provides a strong shift of the electron density along the complex molecule due to the conjugation within the proton acceptor molecule. The dielectric relaxation process in a symmetric associate experimentally observed is explained as a kinetic effect related to the formation and destruction of the associate.

Transition from a monomer to a polymer proton donor leads to the formation of the characteristic 1:1 complex with SmC layered structure different from that of a polymer itself.