Results 1 to 10 of about 70,398 (118)

Solution and Solid State Studies of Urea Derivatives of DITIPIRAM Acting as Powerful Anion Receptors. [PDF]

Molecules, 2021
Herein, we present the synthesis and anion binding studies of a family of homologous molecular receptors 4–7 based on a DITIPIRAM (8-propyldithieno-[3,2-b:2′,3′-e]-pyridine-3,5-di-amine) platform decorated with various urea para-phenyl substituents (NO2,
Niedbała P, Dąbrowa K, Cholewiak-Janusz A, Jurczak J.   +3 more
europepmc   +2 more sources

Optical Anion Receptors with Urea/Thiourea Subunits on a TentaGel Support. [PDF]

ACS Omega, 2021
Zavala-Contreras B, Santacruz-Ortega H, Orozco-Valencia AU, Inoue M, Ochoa Lara K, Navarro RE.   +5 more
europepmc   +2 more sources

Carbazole-Based Colorimetric Anion Sensors

Molecules, 2021
Owing to their strong carbazole chromophore and fluorophore, as well as to their powerful and convergent hydrogen bond donors, 1,8-diaminocarbazoles are amongst the most attractive and synthetically versatile building blocks for the construction of anion
Krystyna Maslowska-Jarzyna, Maria L. Korczak, Jakub A. Wagner, Michał J. Chmielewski   +3 more
doaj   +1 more source

Molecular electrostatic potential (MEP) surface analysis of chemo sensors: An extra supporting hand for strength, selectivity & non-traditional interactions

Journal of Photochemistry and Photobiology, 2021
We have used Molecular Electrostatic Potential (MEP) surface analysis as a web based theoretical tool to visualize and support our experimental finding on existence of C-H••• anion & anion•••π interactions in receptor-anion complexes.
Sudha Lakshminarayanan, Vanthana Jeyasingh, Kumaresan Murugesan, Narayanan Selvapalam, Geetha Dass   +4 more
doaj   +1 more source

Characterizing the Properties of Anion-Binding Bis(cyclopeptides) with Solvent-Independent Energy Increments

Chemistry, 2022
The binding energies of 121 complexes between anions and bis(cyclopeptides) differing in the structure and the number of linking units between the two cyclopeptide rings were analyzed. These Gibbs free energies were obtained in earlier work for different
Stefan Kubik
doaj   +1 more source

A Simulation Model for the Non-Electrogenic Uniport Carrier-Assisted Transport of Ions across Lipid Membranes

Membranes, 2022
Impressive work has been completed in recent decades on the transmembrane anion transport capability of small synthetic transporters from many different structural classes.
Mariano Andrea Scorciapino, Giacomo Picci, Roberto Quesada, Vito Lippolis, Claudia Caltagirone   +4 more
doaj   +1 more source

Measuring anion binding at biomembrane interfaces

Nature Communications, 2022
Quantification of anion binding by molecular receptors within lipid bilayers is challenging. Here, the authors synthesise a high-affinity macrocyclic anion receptor which provides insights into determinants of anion binding within lipid bilayers.
Xin Wu, Patrick Wang, William Lewis, Yun-Bao Jiang, Philip A. Gale   +4 more
doaj   +1 more source

Electron deficient imine-based receptor for selective colorimetric recognition of cyanide ion through aromatic CH•••anion interactions

Journal of Photochemistry and Photobiology, 2021
An electron withdrawing natured di-nitro substituted, imine based receptor L has been designed and synthesized. Naked-eye colorimetric experiment and UV–vis spectrometric studies reveals that the receptor L selectively binding the cyanide anion through C–
Vanthana Jeyasingh, Kumaresan Murugesan, Sudha Lakshminarayanan, Mohamed Asik Liyakathali, Vijay Prabhakaran Nadarajan, Dinesh Kumar Muniyandi, Narayanan Selvapalam, Geetha Das, Lakshminarayanan Piramuthu   +8 more
doaj   +1 more source

A molecular tuner: Substituent controlled π/π···hole induced selective colorimetric intramolecular push-pull fluoride sensor

Chemical Engineering Journal Advances, 2022
Controlling the anion selectivity of synthetic anion receptors towards a particular anion is challenging task for researcher. In the case of bipodal receptors this become trickier since anion can approach the recognition elements of receptors from any ...
Vanthana Jeyasingh, Kumaresan Murugesan, Sudha Lakshminarayanan, Narayanan Selvapalam, Geetha Dass, Lakshminarayanan Piramuthu   +5 more
doaj   +1 more source

Potentiometric Carboxylate Sensors Based on Carbazole-Derived Acyclic and Macrocyclic Ionophores

Chemosensors, 2020
Solid-contact ion-selective electrodes with carbazole-derived ionophores were prepared. They were characterized as acetate sensors, but can be used to determine a number of carboxylates. The potentiometric response characteristics (slope, detection limit,
Ville Yrjänä, Indrek Saar, Mihkel Ilisson, Sandip A. Kadam, Ivo Leito, Johan Bobacka   +5 more
doaj   +1 more source