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[摘要]:Synthesis of monopyrenylalkylamine deriv. 1 and its fluorescence behavior for Cu2+ in H2O/MeCN (1:1, vol./vol.) were studied. 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 intermol. pyrenyl static excimer upon Cu2+ binding to the sulfonamide group, is rationalized by exptl. and theor. DFT calcn. results. |
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