A Highly Selective and Turn‐on Fluorescent Probe for Fe3+ Ion Based on Perylene Tetracarboxylic Diimide. Issue 11 (3rd November 2014)

• Record Type: Journal Article
• Authors: Lin, Jinbin; Zhu, Chunhui; Liu, Xiaoqiong; Chen, Bo; Zhang, Yiyang; Xue, Jinping; Liu, Jianyong
• Is Part Of: Chinese journal of chemistry. Volume 32:Issue 11(2014:Nov.)
• Page Start: 1116
• Page End: 1120
• Publication Date: 2014-11-03
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1002/cjoc.201400464
• Languages: English
• ISSNs: 1001-604X

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>We have demonstrated a turn‐on fluorescent sensor <bold>6</bold> for detection of Fe³⁺ based on photo‐induced electron transfer (PET) mechanism. The probe comprises a perylene tetracarboxylic diimide (PDI) fluorophore and two bis((1, 2, 3‐triazol‐4‐yl)methyl)amine (DTA) moieties as the metal ion receptors. It exhibits high selectivity toward Fe³⁺ over various other metal ions in CH₃CN/H₂O (1:1, <italic>V</italic>/<italic>V</italic>). The binding stoichiometry for <bold>6</bold>‐Fe³⁺ complexes has been determined to be 1:2 by a Job plot of fluorescence. The association constant between <bold>6</bold> and Fe³⁺ was estimated to be 1.04×10¹⁰ (mol/L)⁻² by Benesi‐Hildebrand equation.</p> </abstract>