title: Naphthalimide modified rhodamine derivative: ratiometric and selective fluorescent sensor for Cu2+ based on two different approaches.
abstract: A new rhodamine-based derivative bearing a 1,8-naphthalimide group (1) was synthesized as a dual-mode Cu(2+)-selective sensor via the rhodamine ring-opening approach and ratiometric displacement. A colorimetric and "off-on" signal for Cu(2+) through rhodamine ring opening in 1 and ratiometric fluorescent signal output when Cu(2+) displaces the bound Zn(2+) in the 1-Zn(2+) complex can be observed.
authors.affiliation: Department of Chemistry, Korea University, Seoul 130-701, Korea.
authors.forename: Jun Feng
authors.initials: JF
authors.lastname: Zhang
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhou
authors.forename: Juyoung
authors.initials: J
authors.lastname: Yoon
authors.forename: Youngmee
authors.initials: Y
authors.lastname: Kim
authors.forename: Sung Jin
authors.initials: SJ
authors.lastname: Kim
authors.forename: Jong Seung
authors.initials: JS
authors.lastname: Kim