Selective Sensing of Fumarate Over Maleate by Benzimidazolium – Based Fluororeceptors
About: This article is published in Mini-reviews in Organic Chemistry.The article was published on 2011-01-31. It has received 9 citations till now.
Citations
More filters
TL;DR: A broad scope of fluorescent materials, for example, supramolecular systems, polymeric chemosensors, small molecules, metal-organic frameworks (MOFs), and aggregation-induced emissive materials, and their associated mechanisms and applications are presented in a table format as discussed by the authors.
Abstract: Negatively charged ions are an integral part of our ecosystem, where at certain concentrations (fixed by the Environmental Protection Agency (EPA) and World Health Organization (WHO)), they are non-toxic. However, with an increase or decrease in their concentration due to pollution, industrialization, etc., anions show harmful effects. Therefore, the detection of anions with high sensitivity and selectivity is necessary, which is challenging. In the past few years, various fluorescence-based sensory materials have been developed to detect anions in the solution, solid, and vapor phases through various mechanisms. Significant undertakings are in progress to develop fluorescent materials with high sensitivity, selectivity, and fast response time. This review article starts with the various sensing mechanisms for fluorescence-based anion detection. Subsequently, the fluorescent sensory materials for anion detection are widely and efficiently summarized, focusing on the last 10 years of investigation. The focus of this review is to present a broad scope of fluorescent materials, for example, supramolecular systems, polymeric chemosensors, small molecules, metal–organic frameworks (MOFs), and aggregation-induced emissive materials, and their associated mechanisms and applications. Also, an outline of the reported fluorescent materials and their mechanism, anion detection, low detection limit (LOD), and applications are presented in a table format.
44 citations
TL;DR: In this article, the authors proposed a method to use BICs as scaffolds in biologically active organic synthetic compounds, which is similar to naturally occurring nucleotides, but with a different structure.
Abstract: Benzimidazole (BI) derivatives are structurally similar to naturally occurring nucleotides, a fact that enables their use as scaffolds in biologically active organic synthetic compounds. However, B...
35 citations
TL;DR: A series of cholesterol-appended benzimidazolium salts 1-9 have been designed and synthesized and all gels show thermally activated semiconducting property within a wide voltage window.
Abstract: A series of cholesterol-appended benzimidazolium salts 1–9 have been designed and synthesized. They have been explored in gel chemistry. The gelation of the benzimidazolium salts is dependent on the nature of the counteranions. In addition, the gelation behavior of the gelators is linked with the presence of both π-stacking and cholesteryl motifs. Whereas bisbenzimidazolium salt 2 forms a gel in dimethylsulfoxide/H2O (1:1, v/v) itself, under similar conditions, monobenzimidazolium salts 4 and 6 exhibit gelation in the presence of F– ions and validate the visual sensing of F–. As an application, the gel phase of 2 efficiently removes toxic dyes from waste water. Furthermore, all gels show thermally activated semiconducting property within a wide voltage window.
29 citations
TL;DR: In this article, a review describes the overall development on synthetic receptors built on the pyridinium motif with different functionalities at the 3-position in anion recognition.
Abstract: This review describes the overall development on synthetic receptors built on the pyridinium motif with different functionalities at the 3-position in anion recognition. The review covers only the organic systems. In the designs, the pyridinium group along with the other functional motifs plays a crucial role in the binding of various anions of different shapes and sizes. Complexation characteristics are communicated through changes in 1H NMR, emission, color or gelation behaviours.
21 citations
TL;DR: Enediyne scaffold based new chemosensor 1 has been designed and synthesized as discussed by the authors, which fluorometrically recognizes H 2 PO 4 - in CH3CN containing 1% DMSO by exhibiting a ratiometric change in emission upon complexation.
20 citations