Results 21 to 30 of about 803,233 (296)

Supramolecular Motifs in the Crystal Structures of Triethylbenzene Derivatives Bearing Pyridinium Subunits in Combination with Pyrimidinyl or Pyridinyl Groups

Molecules, 2023
A series of mono- and dicationic 1,3,5-trisubstituted 2,4,6-triethylbenzenes containing pyridinium groups in combination with aminopyrimidine-/aminopyridine-based recognition units were synthesized and crystallographically studied.
Andrea Weiße, Wilhelm Seichter, Monika Mazik   +2 more
doaj   +1 more source

Chloride Binding Properties of a Macrocyclic Receptor Equipped with an Acetylide Gold(I) Complex: Synthesis, Characterization, Reactivity, and Cytotoxicity Studies

Inorganics, 2022
In this work, we report the synthesis and characterization of a mono-nuclear “two wall” aryl-extended calix[4]pyrrole receptor (2Au) decorated with an acetylide-gold(I)-PTA complex at its upper rim. We describe the 1H NMR titration experiments of 2Au and
Andrea Rivoli, Gemma Aragay, María Concepción Gimeno, Pablo Ballester   +3 more
doaj   +1 more source

Picrotoxin Delineates Different Transport Configurations for Malate and γ Aminobutyric Acid through TaALMT1

Biology, 2022
Plant-derived pharmacological agents have been used extensively to dissect the structure–function relationships of mammalian GABA receptors and ion channels. Picrotoxin is a non-competitive antagonist of mammalian GABAA receptors.
Sunita A. Ramesh, Yu Long, Abolfazl Dashtbani-Roozbehani, Matthew Gilliham, Melissa H. Brown, Stephen D. Tyerman   +5 more
doaj   +1 more source

Anion-Induced Intramolecular Cyclization of Urea-Based Receptors: Entrapment of Cyclic [SO₄(H₂O)₄^2–]_n Cluster and Encapsulation of Anions with Varied Dimensionality

, 2023
Two unsymmetrical dipodal monourea anion receptors BPU-1 and BPU-2 with varying π-acidic terminal electron-withdrawing substituents (–NO2 and –CF3) can interact with anions of varied geometries (spherical, trigonal planar, and tetrahedral). Receptors are
Oiyao Appun Pegu (17138663), Rubi Moral (17138666), Gopal Das (565221)   +2 more
core   +1 more source

Electrochemical Anion Recognition By Novel Ferrocenyl Imidazole Systems

Molecules, 2002
A novel class of anion receptors with with C-H···X- hydrogen bonding is introduced and demonstrated for Cl-, Br-, NO3- and HSO4- recognition.
Anthony M. Kennedy, Joshua Howarth, Jean-Luc Thomas   +2 more
doaj   +1 more source

Conformational NMR Study of Bistriazolyl Anion Receptors

Acta Chimica Slovenica, 2016
Conformational features of pyridine- and pyrimidine-based bistriazolyl anion receptors were assessed by multidimensional, heteronuclear NMR spectroscopy.
Damjan Makuc, Tamara Merckx, Wim Dehaen, Janez Plavec   +3 more
doaj   +1 more source

Bishydrazide Derivatives of Isoindoline as Simple Anion Receptors

, 2016
Isoindoline has been investigated as a scaffold for the construction of anion receptors. A family of bishydrazide derivatives of isoindoline has been synthesized, and the anion-binding properties of these receptors were investigated both in solution and ...
Tomasz Zieliński (2314213), Janusz Jurczak (1470880), Paweł Dydio (1793911)   +2 more
core   +3 more sources

Modulation of the Selectivity in Anions Recognition Processes by Combining Hydrogen- and Halogen-Bonding Interactions

Molecules, 2017
Most of the halogen bonding receptors for anions described use halogen bonding binding sites solely in the anion recognition process; only a few examples report the study of anion receptors in which the halogen bonding interaction has been used in ...
Fabiola Zapata, Sergio J. Benítez-Benítez, Paula Sabater, Antonio Caballero, Pedro Molina   +4 more
doaj   +1 more source

Calixarene-Based Anion Receptors

Supramolecular Chemistry, 2005
The selective complexation of anions by synthetic receptors offers a great challenge to the modern chemist. The last ten years have seen a great expansion in the design of synthetic anion receptors. In particular, this review has shown that calixarenes are excellent platforms for the incorporation of numerous ligands for co-operative binding of anions.
Matthews, S. E., Beer, P. D.
openaire   +3 more sources

Fluorescent squaramides as anion receptors and transmembrane anion transporters [PDF]

Chemical Communications, 2018
Squaramides functionalised with a naphthalimide fluorophore as effective fluorescent anion transporters.
Xiaoping Bao, Xin Wu, Stuart N. Berry, Ethan N. W. Howe, Young-Tae Chang, Philip A. Gale   +5 more
openaire   +7 more sources