Cu<sup>2+</sup>-Induced Intermolecular <i>Static</i> Excimer Formation of Pyrenealkylamine
                                
                                    
                                        作者:Hyun Jung Kim、Jooyeon Hong、Areum Hong、Sihyun Ham、Joung Hae Lee、Jong Seung Kim                                    
                                    
                                        DOI:10.1021/ol800475d
                                    
                                    
                                        日期:2008.5.1
                                    
                                    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.