95086-56-9Relevant academic research and scientific papers
Mesogenic, optical, and dielectric properties of 5-substituted 2-[12-(4-pentyloxyphenyl)-p-carboran-1-yl] [1,3]dioxanes
Nagamine, Takashi,Januszko, Adam,Kaszynski, Piotr,Ohta, Kiminori,Endo, Yasuyuki
, p. 3836 - 3843 (2007/10/03)
Two homologous series of carborane-containing dioxanes 1[n] and 2[n] (n = 1-10) were prepared and their mesogenic properties investigated. All compounds exhibit nematic behavior and three members of series 2[n] show an E phase. Numerical analysis of the clearing temperatures gave a limiting value T NI(∞) of 89 °C for series 2[n] and indicated conformational flexibility of the dioxane ring. Investigations of three-ring derivative 1[4] gave Δn = 0.17, S = 0.53, and Δε = +0.4 ± 0.1 at 85 °C. Extrapolation of dielectric data for dilute solutions of 1[4] in 6-CHBT gave Δε = +0.4 ± 0.25 at 24 °C. Modelling of dielectric results with the Maier-Meier equation demonstrated that conformers with a higher β angle are preferred, which is consistent with conformational selection for the most elongated conformers. The Royal Society of Chemistry 2006.
LIQUID CRYSTAL MATERIALS WITH SULFUR ATOMS INCORPORATED IN THE PRINCIPAL STRUCTURE: 2. NEW LIQUID CRYSTAL COMPOUNDS; 2-SUBSTITUTED-5-(p-SUBSTITUTED PHENYL)-1,3-DITHIANES.
Haramoto,Akazawa,Kamogawa
, p. 3173 - 3176 (2007/10/02)
2-Substituted-5-(p-substituted phenyl)-1,3-dithianes (8), new liquid crystals, were synthesized. The mesomorphic properties of these compounds were compared with those of the corresponding 2-(p-substituted phenyl)-5-alkyl-1,3-dithianes (9). The main diffe
