Results 21 to 30 of about 1,775,336 (273)

Thiourea-Based Receptors for Anion Recognition and Signaling. [PDF]

open access: yesACS Omega
Gomez-Vega J   +10 more
europepmc   +2 more sources

Carbazole-Based Colorimetric Anion Sensors

open access: yesMolecules, 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   +3 more
doaj   +1 more source

Recognition of Chiral Carboxylates by Synthetic Receptors

open access: yesMolecules, 2021
Recognition of anionic species plays a fundamental role in many essential chemical, biological, and environmental processes. Numerous monographs and review papers on molecular recognition of anions by synthetic receptors reflect the continuing and ...
Patryk Niedbała   +3 more
doaj   +1 more source

Head vs. Tail Squaramide–Naphthalimide Conjugates: Self-Assembly and Anion Binding Behaviour

open access: yesChemistry, 2022
The syntheses of two squaramide–naphthalimide conjugates (SN1 and SN2) are reported; the structures of SN1 and SN2 differ by the attachment of a squaramide—either at the ‘head’ or the ‘tail’ of the naphthalimide fluorophore. Both compounds displayed weak
Anthony A. Abogunrin   +3 more
doaj   +1 more source

Imidazolium Receptors for the Recognition of Anions [PDF]

open access: yesChemInform, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Yoon, J, Kim, SK, Singh, NJ, Kim, KS
openaire   +3 more sources

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

open access: yesChemistry, 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

Solution and Solid State Studies of Urea Derivatives of DITIPIRAM Acting as Powerful Anion Receptors

open access: yesMolecules, 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,
Patryk Niedbała   +3 more
doaj   +1 more source

Spectroscopic and Colorimetric Studies for Anions with a New Urea-Based Molecular Cleft

open access: yesChemosensors, 2021
A new simple urea-based dipodal molecular cleft (L) has been synthesized and studied for its binding affinity for a variety of anions by 1H-NMR, UV-Vis and colorimetric techniques in DMSO-d6 and DMSO, respectively.
Sanchita Kundu   +3 more
doaj   +1 more source

Separation of Sulfate Anion From Aqueous Solution Governed by Recognition Chemistry: A Minireview

open access: yesFrontiers in Chemistry, 2022
The sulfate anion (SO42–) is known as an end metabolite of cysteine and methionine, and its proper concentration is associated with the expression of key functions in the physiological system. Thus, maintaining sulfate concentration at a precise level is
Si-Qi Chen, Wei Zhao, Biao Wu
doaj   +1 more source

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

open access: yesMolecules, 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   +4 more
doaj   +1 more source

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