Thermal Behavior and Liquid Crystalline Phases of a Series of Bis (n-Alkylammonium) Tetrabromozincates

Abstract
The thermal behavior of compounds of the kind (n-CnH2n+1NH3)2ZnBr4 with n between 10 and 16 has been investigated by means of DSC, IR and X-ray diffraction techniques. All the compounds show order-disorder phase transitions in the solid state, and melt around 430 K to smectic mesophases stable up to at least 550 K.