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Cu2+-Induced Intermolecular Static Excimer Formation of Pyrenealkylamine

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journal contribution
posted on 2008-05-15, 00:00 authored by Hyun Jung Kim, Jooyeon Hong, Areum Hong, Sihyun Ham, Joung Hae Lee, Jong Seung Kim
Synthesis of monopyrenylalkylamine derivative 1 and its fluorescence behavior for Cu2+ in H2O/CH3CN (1:1, v/v) were investigated. Upon Cu2+ binding, 1, bearing a sulfonamide group, exhibited a marked excimer emission at 455 nm along with a weak monomer emission at 375 nm. The excimer emission, driven by formation of an intermolecular pyrenyl static excimer upon Cu2+ binding to the sulfonamide group, is rationalized by experimental and theoretical DFT calculation results.

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