Synthesis of calix[4]arenes bearing thiosemicarbazone moieties with naphthalene groups: Highly selective turn off/on fluorescent sensor for Cu(II) recognition

Bifunctional Receptor Based on Calix[4]arene with Chromone Groups as An Efficient Colorimetric Sensor for Co2+, Cu2+, CN− and F−

“…Some excellent examples of colorimetric anion binding calixarenes can be found in the literature [28–31] . This paper continues our research into developing novel sensors based on calix[4]arene [20,21,25,32] . We have studied different structures of ligating sites such as amide, thiourea and a thiosemicarbazone group.…”

“…[28][29][30][31] This paper continues our research into developing novel sensors based on calix [4]arene. [20,21,25,32] We have studied different structures of ligating sites such as amide, thiourea and a thiosemicarbazone group. The latter presents hydrogen-bond donors, thiocarbonyl and imine groups (with various ligating sites: N, O, S atoms), improving the binding efficiency and selectivity toward different metal cations and anions.…”

Ion sensing with a calix[4]arene bifunctional receptor with thiosemicarbazone moieties and naphthalene chromophore

“…The heteroatoms at these functional groups, facilitate speci c interactions with macromolecules via hydrogen bonding and polar interactions crucial for molecular recognition and detection. Structural motifs, such as thiosemicarbazone group [17], which includes hydrogen-bond donors, thiocarbonyls, and imines with various binding sites such as nitrogen, oxygen, and sulfur atoms, play a crucial role in enhancing binding e ciency and selectivity towards various metal cations and anions [18][19][20][21][22]. Naphthalene groups has been employed as chromophore in different sensors based on calixarene: highly selective turn off/on uorescent sensor for Cu(II) recognition [17], dual uorescence response of sensor towards Cu 2+ and I − [23], uorescent simultaneous complexation of anionic and cationic species [24], selective uorescent recognition toward p-nitrophenol [25], metallo-supramolecular complex (Cu 2+ ) emulates speci c recognition of S2 − ions [26], selective uorescent sensing of Pb 2+ [27], uorescent sensor for Au 3+ and I − [28] and 1,3-alternate calix [4]biscrown chemosensor for metal ions [29].…”

Fluorescence Quenching and the Chamber of Nitroaromatics: A Dinaphthoylated Oxacalix[4]arene’s(DNOC) Adventure Captured through Computational and Experimental Study

“…Naphthalene derivatives, on the other hand, exhibit strong uorescence properties, offering an excellent platform for the detection of target analytes through uorescence quenching or enhancement mechanisms. [26][27][28][29] The electron-rich nature of naphthalene-based derivatives makes them particularly attractive for the development of nitroaromatic explosive sensors. They facilitate hostguest complexation through a charge transfer mechanism between the electron-rich part of the ligand and the electron-withdrawing nature of the analyte, leading to enhanced sensitivity and selectivity.…”