Cu2+ ion-induced self-assembly of pyrenylquinoline with a pyrenyl excimer formation.
Synthesis of a novel pyrene derivative sensor (1) and its intermolecular binding pattern to Cu(2+) in CH(3)CN were investigated. Upon Cu(2+) binding, the sensor exhibited a strong static excimer emission at 460 nm, along with a weak monomer emission at 388 nm. The excimer emission intensity induced by the Cu(2+) ion declined as the spacer length between the pyrene and quinolinylamide unit increased. The Cu(2+) ion-induced self-assembled pyrenyl excimer formation is rationalized by fluorescence experiments and theoretical DFT calculations.
Jung
Hyo Sung
HS
Department of Chemistry, Korea University, Seoul 136-701, Korea.
Park
Mirae
M
Han
Do Young
DY
Kim
Eunmi
E
Lee
Chewook
C
Ham
Sihyun
S
Kim
Jong Seung
JS