Chromogenic Anion Sensors

Abstract

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Highly selective “turn-on” fluorescent sensing of fluoride ion based on a conjugated polymer thin film-Fe3+ complex

“…Recent studies have shown that fluorescent sensors for anions attracted a great deal of interest because of foundational roles of anions in chemical and biological processes [1][2][3][4][5][6][7][8][9][10]. Among these anions, fluoride ions (F − ) are one of the most attractive objects due to their great significance for health and environmental problems such as osteoporosis treatment, dental care and water supply treatment [11][12][13][14][15][16][17][18]. However, excess fluoride exposure might cause fluorosis and urolithiasis [19][20][21].…”

Syntheses of Calix[4]Pyrroles by Amberlyst-15 Catalyzed Cyclocondensations of Pyrrole with Selected Ketones

“…The design and synthesis of receptors to recognize, sense and bind the anions is an important area of supramolecular chemistry [1][2][3][4][5]. Calix [4]pyrroles are conformationally flexible macrocycles [6,7] of significant importance due to their binding under different conditions with anions [8], neutral substrates [9] and metal ions [10].…”

Quantum Chemical Study of Mixed-Ligand Monometallic Ruthenium(II) Complex of Composition [(bpy)2Ru(H3Imbzim)](ClO4)2·2H2O

“…The recognition and sensing of anions has emerged recently as a key research area within the generalized area of Journal of Quantum Chemistry [1][2][3][4][5][6][7][8]. In this study, optimization was carried at DFT level, while electronic absorption spectra were computed as vertical electronic excitations from the ground state using TD-DFT approach.…”

“…Among the entire applicability domain, the recognition and sensing of anions is one of the recently emerged and challenging areas in the field of research. This is due to the important role played by anions in the field of biological, industrial, agricultural, and environmental processes [1][2][3][4][5][6][7][8]. This importance can be visualized from the facts that majority of enzymes bind anions as either substrate or cofactor and many act as ubiquitous nucleophiles, bases, redox agents, and phase transfer catalysts [9,10].…”