The first examples of electrically switchable and photo-responsive mesophases in a novel class of bent-core azo compounds, consisting of only five aromatic rings and no imino functionality (-CH=N-), are reported. The rnesophases have been identified as B-1, B-2 and a new mesophase, B-x on the basis of the results of polarizing optical microscopy, differential scanning calorimetry, X-ray diffraction, and electro-optical response. Preliminary but profound photo-induced effects on the transition temperature from isotropic to the B, mesophase of one of the azo compounds are also presented.
Journal of Materials Chemistry
Available on publisher's site at http://dx.doi.org/10.1039/b314482h.
Prasad, Veena; Kang, Shin-Woong; Qi, Xianghong; Kumar, Satyendra (2004). Photo-Responsive and Electrically Switchable Mesophases in a Novel Class of Achiral Bent-Core Azo Compounds. Journal of Materials Chemistry 14(9) 1495-1502. doi: 10.1039/b314482h. Retrieved from https://oaks.kent.edu/phypubs/56