Oxidation of a dimethylaminophenyl-substituted urea leads to a > 2000-fold increase in binding strength between the urea and a diamide guest in 0.1 M NBu4B(C6F5)4/CH2Cl2. The strength of this interaction is obscured when NBu4ClO4 or NBu4PF6 is used as the electrolyte due to competition between the neutral guest and the electrolyte anion for H-bonding to the urea cation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/ja803453e | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Controlled reconstruction of metal-organic frameworks coordination environment tuning as oxygen evolution electrocatalysts.
Dalton Trans
January 2025
Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, China.
During the oxygen evolution reaction (OER), metal-organic framework (MOF) catalysts undergo structural reorganization, a phenomenon that is still not fully comprehended. Additionally, designing MOFs that undergo structural reconstruction to produce highly active OER catalysts continues to pose significant challenges. Herein, a bimetallic MOF (CoNi-MOF) with carboxylate oxygen and pyridine nitrogen coordination has been synthesized and its reconstruction behavior has been analyzed.
View Article and Find Full Text PDFResolving electrochemically triggered topological defect dynamics and structural degradation in layered oxides.
Proc Natl Acad Sci U S A
January 2025
Department of Physics and Astronomy, University of California, Irvine, CA 92697.
Understanding topological defects-controlled structural degradation of layered oxides-a key cathode material for high-performance lithium-ion batteries-plays a critical role in developing next-generation cathode materials. Here, by constructing a nanobattery in an electron microscope enabling atomic-scale monitoring of electrochemcial reactions, we captured the electrochemically driven atomistic dynamics and evolution of dislocations-a most important topological defect in material. We deciphered how dislocations nucleate, move, and annihilate within layered cathodes at the atomic scale.
View Article and Find Full Text PDFElectrochemical Controlling of Double Microgel Layer Formation on an Electrode Surface via an Electrosensitive Inclusion Complex.
ACS Mater Au
January 2025
Faculty of Chemistry, University of Warsaw, 1 Ludwika Pasteura Str., PL 02-093 Warsaw, Poland.
In this study, we demonstrate the formation of a self-assembled microgel double layer on an electrode surface, utilizing the ability to form electro-responsive, reversible inclusion complexes between microgels modified with ferrocene and β-cyclodextrin in these systems. The bottom layer was based on microgels containing ferrocene moieties and derivatives of cysteine. The presence of the amino acid derivative enabled the formation of the well-packed monolayer on the gold surface through chemisorption, while ferrocene was responsible for electroactivity.
View Article and Find Full Text PDFFlow electrolytic separation of radionuclides for interference suppression in γ-spectrometry.
Anal Chim Acta
February 2025
Department of Chemistry and Applied Biosciences, Laboratory of Inorganic Chemistry, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, CH-8093, Switzerland; Laboratory of Radiochemistry, Centre for Nuclear Engineering and Sciences, Paul Scherrer Institute, Forschungsstrasse 111, Villigen PSI, CH-5232, Switzerland. Electronic address:
Background: The direct and accurate measurement of low-level γ-emitters in samples from nuclear facilities is a challenging task due to the presence of high activities of dominant radionuclides. In this case a complex chemical separation is required to remove interfering radionuclides prior to γ-spectrometric analysis. Several radionuclides such as, Ag, Sb, Sn and Te are of relevance for radioanalytical analysis in nuclear facilities.
View Article and Find Full Text PDFRapid and receptor-free Prussian blue electrochemical sensor for the detection of pathogenic bacteria in blood.
Bioelectrochemistry
January 2025
Department of Mechanical Engineering, Ajou University, South Korea. Electronic address:
Bloodstream bacterial infections, a major health concern due to rising sepsis rates, require prompt, cost-effective diagnostics. Conventional methods, like CO-based transduction, face challenges such as volatile metabolites, delayed gas-phase signaling, and the need for additional instruments, whereas electrochemical sensors provide rapid, sensitive, and efficient real-time detection. In this study, we developed a bioreceptor-free Prussian blue (PB) sensor platform for real-time bacterial growth monitoring in blood culture.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!