Results 141 to 150 of about 70,737 (245)

CO₂ electroreduction favors carbon isotope ¹²C over ¹³C and facilitates isotope separation. [PDF]

iScience, 2023
Barecka MH, Kovalev MK, Muhamad MZ, Ren H, Ager JW, Lapkin AA.   +5 more
europepmc   +1 more source

A Wagner–Meerwein‐Like Rearrangement Generates a Vinyl Group in the Biosynthesis of the Polychlorinated Lipopeptides Fischerazoles

Angewandte Chemie, EarlyView.
The fischerazoles, unusual cyanobacterial chlorinated lipopeptides are reported. During their biosynthesis, a linear fatty acyl‐acyl carrier protein (ACP) precursor is rearranged through the action of the S‐adenosyl‐methionine (SAM)‐dependent methyltransferase FshF, to generate a pendant vinyl group.
Sandra A. C. Figueiredo, Kathleen Abt, Konrad Viehrig, Peter J. Jervis, Teresa P. Martins, Iñaki Lacomba, Chuhan Li, Daniele Castagnolo, Pedro N. Leão   +8 more
wiley   +2 more sources

Stable Carbon Isotope Analysis of Perfluorooctanoic Acid (PFOA) by Microflow-High Pressure Liquid Chromatography-Orbitrap Mass Spectrometry. [PDF]

Rapid Commun Mass Spectrom
Wojtal PK, Davidheiser-Kroll B, Lane CS, Mead RN.   +3 more
europepmc   +1 more source

Re-examining extreme carbon isotope fractionation in the coccolithophore Ochrosphaera neapolitana. [PDF]

Nat Commun, 2022
Zhang H, Torres-Romero I, Stoll HM.
europepmc   +1 more source

Exclusive Hydroformylation of Terminal Olefins: A Phosphorus‐Free Ruthenium System for the Selective Functionalization of Complex Mixtures

Angewandte Chemie, EarlyView.
Development of a phosphorus‐free Ru/DBU catalyst enabling highly chemo‐ and regioselective hydroformylation of terminal olefins, sparing internal double bonds. Optimization of reaction parameters, ligand effects, and substrate scope including industrial feedstocks was realized.
Mohamed Niyaz Vellala Syed Ali, Ida Ziccarelli, Dilver Peña Fuentes, Christoph Kubis, Robert Franke, Ralf Jackstell, Matthias Beller   +6 more
wiley   +2 more sources

A Synergistic Approach Combining Stable Carbon Isotope Ratio Analysis and Melissopalynology for the Authentication of Honey from Thailand. [PDF]

Foods
Judprasong K, Sinpoo C, Naksuriyawong S, Kamdee K, Meepho SA, Phokasem P, Saengkorakot C, Fungklin R, Uapoonphol N, Disayathanoowat T, Esor J, Thongphichai W, Boonsirichai K.   +12 more
europepmc   +1 more source

Rapid Access to Carbon-Isotope-Labeled Alkyl and Aryl Carboxylates Applying Palladacarboxylates. [PDF]

JACS Au, 2023
Ton SJ, Ravn AK, Hoffmann DV, Day CS, Kingston L, Elmore CS, Skrydstrup T.   +6 more
europepmc   +1 more source

Coupled Fe3O4‐Cluster Precipitates and Single Fe‐Atom Catalysts Can Boost Oxygen Reduction via Concomitantly Accelerated Water Dissociation

Angewandte Chemie, EarlyView.
Fe3O4 clusters can be precipitated onto Fe–N–C SACs through a residual‐oxygen‐assisted precipitation approach. Compelling evidence, including operando spectroscopy and ab initio calculations, suggests that Fe3O4‐cluster precipitates not only induce asymmetric electronic structures of Fe‐N4 active center to optimize the OH* adsorption, but also ...
Cheng‐Kai Du, Xiongyi Liang, Fei‐Xiang Ma, Yutong Li, Zheng‐Qi Liu, Long Ma, Zeng Li, Liang Zhen, Yan Huang, Xiao Cheng Zeng, Cheng‐Yan Xu   +10 more
wiley   +2 more sources

Environmental changes and their effects on carbon isotope distribution in Lake Plateliai over the past 130 years: insights from sediment organic fractions and diatom assemblages. [PDF]

PLoS One
Barisevičiūtė R, Karosienė J, Kasperovičienė J, Paškauskas R, Jefanova O, Szwarczewski P, Ežerinskis Ž, Butkus L, Šapolaitė J, Mažeika J.   +9 more
europepmc   +1 more source

Spatio-Temporal Variations in Carbon Isotope Discrimination Predicted by the JULES Land Surface Model. [PDF]

J Geophys Res Biogeosci, 2022
Palmer L, Robertson I, Lavergne A, Hemming D, Loader NJ, Young G, Davies D, Rinne-Garmston K, Los S, Williams J.   +9 more
europepmc   +1 more source