PHASE-DIAGRAMS OF PERHYDROTRIPHENYLENE AND AROMATIC-COMPOUNDS .1. TRANS STYLBENE AND 4H-CYCLOPENTA[2,1-B 3,4-B'] DITHIOPHENE/

Perhydrotriphenylene (PHTP) forms channel-like adducts with molecules of different size and molecular weight. In the crystal structure of th e adduct the included long sequences of molecules are separated from e ach other by the channel walls. The optical properties of the included molecules differ from those of the bulk molecules. The phase diagram of mixtures of PHTP and trans stylbene and 4H-cyclopenta [2,1-b:3,4-b' ] dithiophene (CPDT) were determined by DSC experiments. Ideality in t he liquid phase was observed only in the PHTP/CPDT system.