دورية أكاديمية
A Fluorenone Derived Schiff Base as a Selective Colorimetric Sensor for Copper Ions and its Applications.
| العنوان: | A Fluorenone Derived Schiff Base as a Selective Colorimetric Sensor for Copper Ions and its Applications. |
|---|---|
| المؤلفون: | Selvam, Pravinkumar, R, Bhaskar, Ramasamy, Selva Kumar, Pradeep, Ilayaperumal, Kumar, Somanahalli Kalleshappa Ashok |
| المصدر: | ChemistrySelect; 1/8/2024, Vol. 9 Issue 1, p1-10, 10p |
| مصطلحات موضوعية: | COPPER ions, SCHIFF bases, FLUORENONE, BINDING constant, CONDENSATION reactions, CARBOXYLIC acids |
| مستخلص: | In this study, a naked‐eye colorimetric probe (L) was synthesized by condensation reaction of 9‐fluorenone with 2‐thiophene carboxylic acid hydrazide and characterized by various analytical techniques. The presence of O, N, and S heteroatoms in L would modulate the hard and soft characters, which is responsible for selective complexation of Cu2+ and fluorenone act as signalling unit. The sensing ability of L was studied with various metal ions by colorimetric, test paper strip, and UV‐visible spectrophotometry in DMSO: H2O (6 : 4, v/v). The colorless solution L turned green upon interacting with Cu2+ ions, while other ions did not change color. The probe L exhibits an absorbance band at 354 nm; upon interaction with Cu2+ ions, it exhibits a band at 413 nm due to ligand‐to‐metal charge transfer (LMCT). The probe L binds Cu2+ in a 2 : 1 stoichiometric ratio with an association constant of 3.76×107 M−2, established using Job's and BindFit methods. Further, binding mechanism is supported by EPR and ESI studies. The probe L can work in the pH range of 3.0 to 7.5 and detect as low as 93 nM (6 ppb) by spectrophotometry. Probe L demonstrates a promising potential for detecting Cu2+ ions in the semi‐aqueous medium. [ABSTRACT FROM AUTHOR] |
| Copyright of ChemistrySelect is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| قاعدة البيانات: | Complementary Index |
Full Text Finder كن أول من يترك تعليقا!