The effects of high pressure on the luminescence properties of bichromorphic compounds, i. e., (9-anthryl)-(CHI),-(9-anthryl) systems and p-(CH, )>NC, H,-CH,-(9-anthryl), were investigated. They were studied in a polymeric environment in order to eliminate intermolecular interactions. Two types of intramolecular interactions, I . e., " through-bond interaction" and " through-space interaction." are distinguished by the different presswe effects, depending on the ground-state molecular conformations.
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