POSS solid solutions exhibiting orientationally disordered phase transitions†
Abstract
Examples of solid solution behavior for molecular crystals are limited, due to difficulty in designing a crystalline mixture of different molecules. Here, we found that a mixture of two different monofunctionalized heptaisobutyl-substituted octasilsesquioxanes formed solid solutions showing a single phase-transition temperature, which exhibited orientationally disordered (OD) phases.