Abstract
N-(9-Anthryl) aza-18-crown-6 ( 3) was synthesised via the palladium-catalysed cross-coupling of 9-bromoanthracene ( 1) and aza-18-crown-6 ( 2). Its photophysical properties include an intramolecular charge-transfer absorption band ( λ max ≈ 425 nm) in polar and non-polar solvents, which disappears upon protonation or binding of K + (log K ass = 3.7 in acetonitrile).
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