title: Two Different Emission-Wavelength Fluorescent Probes for Aluminum Ion based on Tunable Fluorophores in Aqueous Media.
abstract: Two simply and highly selective aluminium ion fluorescent probes based on 4-aminoantipyrine derivate have been successfully synthesized and systemically characterized, The investigation of absorption and emission spectra revealed that the compounds exhibited highly selective fluorescence behaviours toward Al(3+) in aqueous media and showed differential fluorescent emission peaks corresponding to blue and green. which resulted from different fluorophores, and the fluorescence process is attributed to the Photoinduced Electron Transfer (PET) mechanism, In addition, the association constants between sensors L1 and L2 with aluminum ion are 1.58 × 10(6) M(-1) and 8.72 × 10(6) M(-1), respectively, which were obtained by fluorescent titration experiments. Moreover, the binding site of sensors with Al(3+) were determined by (1)HNMR titration experiments.
authors.affiliation: College of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou, 466001, People's Republic of China.
authors.forename: Yanxia
authors.initials: Y
authors.lastname: Li
authors.forename: Zengchen
authors.initials: Z
authors.lastname: Liu
authors.forename: Wenping
authors.initials: W
authors.lastname: Zhu
authors.forename: Hao
authors.initials: H
authors.lastname: Fu
authors.forename: Yongjie
authors.initials: Y
authors.lastname: Ding
authors.forename: Jianping
authors.initials: J
authors.lastname: Xie
authors.forename: Weijie
authors.initials: W
authors.lastname: Yang
authors.forename: Lili
authors.initials: L
authors.lastname: Li
authors.forename: Chao
authors.initials: C
authors.lastname: Cheng