View : 13 Download: 0

A Solvent-dependent Fluorogenic Probe Containing Julolidine for Cr(III) and Cu(II)

Title
A Solvent-dependent Fluorogenic Probe Containing Julolidine for Cr(III) and Cu(II)
Authors
Anjong, Tikum FlorencePark, Yu MiJang, Ha YoonKim, Jinheung
Ewha Authors
김진흥
SCOPUS Author ID
김진흥scopus
Issue Date
2016
Journal Title
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
ISSN
0253-2964JCR Link1229-5949JCR Link
Citation
vol. 37, no. 6, pp. 905 - 910
Keywords
Luminescence assayJulolidineSolvent dependenceChromium ionCopper ion
Publisher
WILEY-V C H VERLAG GMBH
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
A julolidine-containing naphthylamine probe (EW1) was prepared for sensing specific metal ions. Probe EW1 afforded a broad low fluorescence at 500-600 nm in acetonitrile, but gave a relatively stronger fluorescence at 540 nm in methanol. EW1 showed a selective turn-on emission for Cr3+ in CH3CN. Upon treatment with Cr3+, a strong emission was observed at 515 nm, but other metal ions, such as K+, Ag+, Ca2+, Zn2+, Co2+, Ni2+, Cu2+, Cd2+, Hg2+, Fe2+, and Fe3+, failed to induce such an emission band. A clean isosbestic point appeared at 405 nm in the UV-vis titration with Cr3+. The emission intensity of EW1 was enhanced with incremental addition of Cr3+, indicating the formation of a 1: 1 complex of the probe EW1 and chromium ion. However, EW1 showed a selective turn-off response with Cu2+ in CH3OH. The emission band of EW1 at 540 nm was quenched only with Cu2+ and not with other control metal ions. The absorption band of EW1 at 410 nm progressively decreased, and a new absorption at 390 nm appeared upon progressive addition of Cu2+. All spectroscopic titration experiments and ESI mass data provided evidence for the formation of a 1: 1 complex between EW1 and Cu2+.
DOI
10.1002/bkcs.10800
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE