Results 1 to 10 of about 229,553 (301)
Chemical Society Reviews, 2010 Compared with simple ion receptors, which are able to bind either a cation or an anion, ion pair receptors bearing both a cation and an anion recognition site offer the promise of binding ion pairs or pairs of ions strongly as the result of direct or indirect cooperative interactions between co-bound ions.
Sung Kuk Kim, Jonathan L Sessler
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Macrocycles as Ion Pair Receptors
Chemical Reviews, 2019 Cation and anion recognition have both played central roles in the development of supramolecular chemistry. Much of the associated research has focused on the development of receptors for individual cations or anions, as well as their applications in different areas. Rarely is complexation of the counterions considered.
Qing He +2 more
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Theoretical Study of an Authentic Hydrocarbon Ion Pair [PDF]
ACS OmegaElizete Ventura +3 more
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Pharmaceuticals, 2021 This research aimed to explore how Strychnine (Str) ion-pair compounds affect the in vitro transdermal process. In order to prevent the influence of different functional groups on skin permeation, seven homologous fatty acids were selected to form ion ...
Lili He +7 more
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Ion Pair Catalyst ‐ Pentanidinium
The Chemical Record, 2023 AbstractIn this account, we further describe our already developed N‐sp2 hybrid guanidinium as an efficient phase‐transfer catalyst and ion pair catalysis based on N‐sp2 hybrid pentanidinium and its application in some new reactions. The sp3 hybrid quaternary ammonium salt has a tetrahedral structure, which means that three sides of it can be ...
Yimin Qin +3 more
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Selective Recovery of Platinum (IV) from HCl Solutions Using 2-Ethylhexylamine as a Precipitant
Separations, 2021 The selective separation and recovery of specific platinum-group metals (PGMs) from metal mixtures is a significant challenge owing to the similarity of these metals in terms of chemical and physical properties.
Kazuya Matsumoto +3 more
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Simple and extraction-free spectrophotometric methods for risperidone in pure form and in dosage forms [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2013 Two simple, sensitive and extraction-free spectrophotometric methods are described for the estimation of risperidone (RSP) in both pure and in pharmaceutical preparations. The proposed methods are based on the formation of ion-pair complex between RSP
Deepakumari Hemavathi N. +3 more
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Drug Delivery, 2022 This research aimed to investigate how the relationship between counter ion and diacerein (DCN) exerts an effect on the skin penetration of DCN ion-pair compounds.
Yan Liang +6 more
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Asymmetric Ion‐Pairing Catalysis [PDF]
Angewandte Chemie International Edition, 2012 AbstractCharged intermediates and reagents are ubiquitous in organic transformations. The interaction of these ionic species with chiral neutral, anionic, or cationic small molecules has emerged as a powerful strategy for catalytic, enantioselective synthesis.
Brak, Katrien, Jacobsen, Eric
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Modulational Instability of Ion-Acoustic Waves in Pair-Ion Plasma
Plasma, 2021 The modulational instability (MI) of ion-acoustic waves (IAWs) is examined theoretically in a four-component plasma system containing inertialess electrons featuring a non-thermal, non-extensive distribution, iso-thermal positrons, and positively as well
Sharmin Jahan +3 more
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