Results 1 to 10 of about 32,433 (236)

Profluorescent Fluoroquinolone-Nitroxides for Investigating Antibiotic–Bacterial Interactions

Antibiotics, 2019
Fluorescent probes are widely used for imaging and measuring dynamic processes in living cells. Fluorescent antibiotics are valuable tools for examining antibiotic–bacterial interactions, antimicrobial resistance and elucidating antibiotic modes of
Anthony D. Verderosa, Rabeb Dhouib, Kathryn E. Fairfull-Smith, Makrina Totsika   +3 more
doaj   +1 more source

A New Method for the Synthesis of Heterospin Complexes

Crystals, 2015
The interaction of binuclear Co(II) pivalate [Сo2(H2O)Piv4(HPiv)4] with nitronyl nitroxide HL1 (2-(2-hydroxy-5-nitrophenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-3-oxide-1-oxyl) in organic solvents led to the formation of a pentanuclear heterospin
Victor Ovcharenko, Olga Kuznetsova, Elena Fursova, Gаlinа Romаnenko, Artem Bogomyakov   +4 more
doaj   +1 more source

2-(Fluoromethyl)-4,7-dimethoxy-1-methyl-1H-benzimidazole

Molbank, 2020
Selectfluor (1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate)) substitutes the TEMPO free radical with fluorine on 4,7-dimethoxy-1-methyl-2-{[(2,2,6,6-tetramethylpiperidin-1-yl)oxy]methyl}-1H-benzimidazole to give the title
Patrick Kielty, Pau Farràs, Dennis A. Smith, Fawaz Aldabbagh   +3 more
doaj   +1 more source

The Reactions of 6-(Hydroxymethyl)-2,2-dimethyl-1-azaspiro[4.4]nonanes with Methanesulfonyl Chloride or PPh₃-CBr₄

Molecules, 2021
Activation of a hydroxyl group towards nucleophilic substitution via reaction with methanesulfonyl chloride or PPh3-CBr4 system is a commonly used pathway to various functional derivatives.
Yulia V. Khoroshunova, Denis A. Morozov, Andrey I. Taratayko, Sergey A. Dobrynin, Ilia V. Eltsov, Tatyana V. Rybalova, Yulia S. Sotnikova, Dmitriy N. Polovyanenko, Nargiz B. Asanbaeva, Igor A. Kirilyuk   +9 more
doaj   +1 more source

Crystal structure of 4′-{[4-(2,2′:6′,2′′-terpyridyl-4′-yl)phenyl]ethynyl}biphenyl-4-yl (2,2,5,5-tetramethyl-1-oxyl-3-pyrrolin-3-yl)formate benzene 2.5-solvate

Acta Crystallographica Section E: Crystallographic Communications, 2015
The title compound, C44H35N4O3·2.5C6H6 (1), consists of a terpyridine and a N-oxylpyrroline-3-formate group separated by an aromatic spacer, viz. 4-(phenylethynyl)-1,1′-biphenyl.
Andreas Meyer, Gregor Schnakenburg, Olav Schiemann   +2 more
doaj   +1 more source

Guidelines for the Simulations of Nitroxide X-Band cw EPR Spectra from Site-Directed Spin Labeling Experiments Using SimLabel

Molecules, 2023
Site-directed spin labeling (SDSL) combined with continuous wave electron paramagnetic resonance (cw EPR) spectroscopy is a powerful technique to reveal, at the local level, the dynamics of structural transitions in proteins.
Emilien Etienne, Annalisa Pierro, Ketty C. Tamburrini, Alessio Bonucci, Elisabetta Mileo, Marlène Martinho, Valérie Belle   +6 more
doaj   +1 more source

NMR and EPR Study of Homolysis of Diastereomeric Alkoxyamines

Molecules, 2020
Three alkoxyamines based on imidazoline radicals with a pyridine functional group—potential initiators of nitroxide-mediated, controlled radical polymerization—were synthesized.
Sergey Cherkasov, Dmitriy Parkhomenko, Alexander Genaev, Georgii Salnikov, Mariya Edeleva, Denis Morozov, Tatyana Rybalova, Igor Kirilyuk, Sylvain R. A. Marque, Elena Bagryanskaya   +9 more
doaj   +1 more source

A Low-Spin Co^II/Nitroxide Complex for Distance Measurements at Q-Band Frequencies

Magnetochemistry, 2022
Pulse dipolar electron paramagnetic resonance spectroscopy (PDS) is continuously furthering the understanding of chemical and biological assemblies through distance measurements in the nanometer range.
Angeliki Giannoulis, David B. Cordes, Alexandra M. Z. Slawin, Bela E. Bode   +3 more
doaj   +1 more source

Computation of nitroxide–nitroxide distances in spin‐labeled DNA duplexes [PDF]

Biopolymers, 2007
AbstractNanometer distances in nucleic acids can be measured by EPR using two 1‐oxyl‐2,2,5,5‐tetramethylpyrroline radicals, with each label attached via a methylene group to a phosphorothioate‐substituted backbone position as one of two phosphorothioate diastereomers (RP and SP).
Eric A, Price, Brian T, Sutch, Qi, Cai, Peter Z, Qin, Ian S, Haworth   +4 more
openaire   +2 more sources

Thermally Activated Paramagnets from Diamagnetic Polymers of Biphenyl-3,5-diyl Bis(tert-butyl Nitroxides) Carrying Methyl and Fluoro Groups at the 2’- and 5’-Positions

Crystals, 2016
Three new biradicals—2’,5’-dimethyl-, 2’-fluoro-5’-methyl-, and 5’-fluoro-2’-methyl- biphenyl-3,5-diyl bis(tert-butyl nitroxides)—were synthesized. The magnetic susceptibility measurements revealed their diamagnetism below and around room temperature ...
Toru Yoshitake, Hiroki Kudo, Takayuki Ishida   +2 more
doaj   +1 more source