Scheme 1.
Synthetic scheme of the investigated compounds 2,6-bis[(E)-2-(4-aminophenyl)ethenyl]pyridine (DMA-QP), 2,5-bis[(E)-2-(4-aminophenyl)ethenyl]thiophene (DMA-QT) and 2,5-bis–[(E)-2-(4-aminophenyl)ethenyl]furan (DMA-QF).
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