Search Results - "TARABEK, Ján"
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Electron Transfer Triggers Fast Dimer/Monomer Switching of Pyridinium and Quinolinium Cations
Published in Journal of physical chemistry. C (09-02-2012)“…N-Heteroaromatic cations with quaternary pyridine-type nitrogen atoms have a rich application potential due to their bioactivity, fluorescence, and redox…”
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Combining Flavin Photocatalysis and Organocatalysis: Metal-Free Aerobic Oxidation of Unactivated Benzylic Substrates
Published in Organic letters (04-01-2019)“…We report a system with ethylene-bridged flavinium salt 2b which catalyzes the aerobic oxidation of toluenes and benzyl alcohols with high oxidation potential…”
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Directional Charge Transport in Layered Two‐Dimensional Triazine‐Based Graphitic Carbon Nitride
Published in Angewandte Chemie International Edition (08-07-2019)“…Triazine‐based graphitic carbon nitride (TGCN) is the most recent addition to the family of graphene‐type, two‐dimensional, and metal‐free materials. Although…”
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Sulfur- and Nitrogen-Containing Porous Donor–Acceptor Polymers as Real-Time Optical and Chemical Sensors
Published in Macromolecules (22-10-2019)“…Fully aromatic, organic polymers have the advantage of being composed from light, abundant elements, and are hailed as candidates in electronic and optical…”
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Twinned Growth of Metal‐Free, Triazine‐Based Photocatalyst Films as Mixed‐Dimensional (2D/3D) van der Waals Heterostructures
Published in Advanced materials (Weinheim) (01-10-2017)“…Design and synthesis of ordered, metal‐free layered materials is intrinsically difficult due to the limitations of vapor deposition processes that are used in…”
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Intense Chiroptical Switching in a Dicationic Helicene-Like Derivative: Exploration of a Viologen-Type Redox Manifold of a Non-Racemic Helquat
Published in Journal of the American Chemical Society (06-08-2014)“…Two-step redox switching in enantiopure helquat system [P-1]2+ ⇌ [P-1]•+ ⇌ [P-1]0 is demonstrated. The viologen-type electroactive unit embedded directly in…”
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Highly Chemoselective Catalytic Photooxidations by Using Solvent as a Sacrificial Electron Acceptor
Published in Chemistry : a European journal (01-12-2022)“…Catalyst recovery is an integral part of photoredox catalysis. It is often solved by adding another component‐a sacrificial agent‐whose role is to convert the…”
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The oxidation of luteolin, the natural flavonoid dye
Published in Electrochimica acta (01-11-2013)“…The oxidation of natural flavonoid luteolin in aqueous solution is studied by electrochemical methods, electron paramagnetic resonance (EPR),…”
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Tuning the Porosity and Photocatalytic Performance of Triazine‐Based Graphdiyne Polymers through Polymorphism
Published in ChemSusChem (10-01-2019)“…Crystalline and amorphous organic materials are an emergent class of heterogeneous photocatalysts for the generation of hydrogen from water, but a direct…”
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EPR Spectroscopy of Radical Ions of a 2,3-Diamino-1,4-naphthoquinone Derivative
Published in Journal of organic chemistry (18-05-2018)“…We report the electron paramagnetic resonance spectra of the radical cation and radical anion of…”
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Tailored Band Gaps in Sulfur‐ and Nitrogen‐Containing Porous Donor–Acceptor Polymers
Published in Chemistry : a European journal (21-09-2017)“…Donor–acceptor dyads hold the key to tuning of electrochemical properties and enhanced mobility of charge carriers, yet their incorporation into a…”
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12
ABNOH‐Linked Nucleotides and DNA for Bioconjugation and Cross‐linking with Tryptophan‐Containing Peptides and Proteins
Published in Chemistry : a European journal (02-09-2024)“…Reactive N‐hydroxy‐9‐azabicyclo[3.3.1]nonane (ABNOH) linked 2′‐deoxyuridine 5′‐O‐mono‐ and triphosphates were synthesized through a CuAAC reaction of…”
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13
Radical and Nitrenoid Reactivity of 3‑Halo-3-phenyldiazirines
Published in Organic letters (05-08-2016)“…3-Halo-3-phenyl-3H-diazirines (halogen = Br or Cl) undergo a dissociative single-electron transfer from alkyllithiums (RLi) in THF-based solvent mixtures. The…”
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14
Photocatalytic Generation of Trifluoromethyl Nitrene for Alkene Aziridination
Published in Angewandte Chemie International Edition (08-01-2024)“…N‐Trifluoromethylated organics may be applied in drug design, agrochemical synthesis, and materials science, among other areas. Yet, despite recent advances in…”
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Tunable Push–Pull Interactions in 5‑Nitrosopyrimidines
Published in Journal of organic chemistry (06-05-2016)“…The effect of push–pull interactions in a series of variously substituted 5-nitrosopyrimidines on the strength of intramolecular hydrogen bonds, the height of…”
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Novel Functions of an Iron-Sulfur Flavoprotein from Trichomonas vaginalis Hydrogenosomes
Published in Antimicrobial agents and chemotherapy (01-06-2014)“…Iron-sulfur flavoproteins (Isf) are flavin mononucleotide (FMN)- and FeS cluster-containing proteins commonly encountered in anaerobic prokaryotes. However,…”
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Kinetics of Multielectron Transfers and Redox-Induced Structural Changes in N‑Aryl-Expanded Pyridiniums: Establishing Their Unusual, Versatile Electrophoric Activity
Published in Journal of the American Chemical Society (09-09-2015)“…A combined electrochemical and theoretical study of a series of pyridinium-based electrophores, consisting of reference N-alkyl-2,4,6-triarylpyridiniums (1–3)…”
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A π‐Conjugated, Covalent Phosphinine Framework
Published in Chemistry : a European journal (20-09-2019)“…Structural modularity of polymer frameworks is a key advantage of covalent organic polymers, however, only C, N, O, Si, and S have found their way into their…”
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ESR in the Czech Republic, its Historical Overview, Current Status, and Future
Published in Applied magnetic resonance (01-09-2024)“…The development of magnetic resonance methods (ESR, NMR, and FMR), which took place on a global scale after the discovery of the magnetic resonance effect in…”
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Capturing a dynamically interacting inhibitor by paramagnetic NMR spectroscopy
Published in Physical chemistry chemical physics : PCCP (06-03-2019)“…Transient and fuzzy intermolecular interactions are fundamental to many biological processes. Despite their importance, they are notoriously challenging to…”
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