Abstract
Salts containing radical cations of dialkoxyterphenyls (DP) including 4,4′-dimethoxyterphenyl (1) and 4,4′-diethoxyterphenyl (2) have been isolated with weakly coordinating anions [Al(ORF)4]− (ORF = OC(CF3)3) or [Al(ORMe)4]− (ORMe = OC(CF3)2CH3) as the counterions. The radical cation salts have been characterized by single-crystal X-ray diffraction analysis, UV–vis absorption, and electron paramagnetic resonance spectroscopy, as well as conductivity measurements. Single-crystal structures indicate that the radical cations assemble into infinite stacks of π-dimer in these salts, while single-crystal conductivity measurements show that the conductivity of the salts is significantly affected by substituent groups and the interaction among the cation, anion, and solvent.
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