Results 31 to 40 of about 2,106 (176)
Angewandte Chemie, EarlyView.Two novel bonded BN‐doped polycyclic hydrocarbons BN‐Dira and BN‐Tetra with open‐shell character were rationally designed and synthesized. Their molecular structures were unambiguously confirmed by crystallographic analysis. Facilitated by their intense absorption in the NIR region, high PCE (83.6%) and good photothermal stability, BN‐Dira and BN‐Tetra
Peiyun Zeng +7 more
wiley +2 more sources
Synthesis of 1-azaspiro[4.4]nonan-1-oxyls via intramolecular 1,3-dipolar cycloaddition
Beilstein Journal of Organic Chemistry, 2019 Sterically shielded nitroxides of the pyrrolidine series have shown the highest resistance to reduction. Here we report the synthesis of new pyrrolidine nitroxides from 5,5-dialkyl-1-pyrroline N-oxides via the introduction of a pent-4-enyl group to the ...
Yulia V. Khoroshunova +5 more
doaj +1 more source
Synthesis of Nitroxide Diradical Using a New Approach
Molecules, 2020 A new synthetic pathway to diradical organic systems is proposed. The effectiveness of this approach was exemplified by the synthesis of a new nitroxide diradical. An interaction of perfluorobiphenyl with lithium tert-butylamide, followed by oxidation of
Pavel Fedyushin +7 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 +4 more
openaire +2 more sources
Frontiers in Cellular and Infection Microbiology, 2022 Microbial biofilms are becoming increasingly difficult to treat in the medical setting due to their intrinsic resistance to antibiotics. To combat this, several biofilm dispersal agents are currently being developed as treatments for biofilm infections ...
Sophia Hawas +5 more
doaj +1 more source
Ab Initio Study of Some Persistent Nitroxide Radicals
CHIMIA, 2008 Stable free radicals have a variety of applications. Particularly, the aminoxyl group is frequently used in spin-labeling experiments. Nitroxides may also exhibit intriguing chiral and magnetic properties, and can be of interest for studies of ...
L'uboš Horný +2 more
doaj +1 more source
Molecules, 2021 The reaction of a diene nitroxide precursor with dichlorophenylphosphine in a McCormac procedure afforded 1,1,3,3-tetramethyl-5-phenyl-1,2,3,4,5,6-hexahydrophospholo[3,4-c]pyrrole-5-oxide-2-oxyl.
Mostafa Isbera +5 more
doaj +1 more source
Cyclic nitroxides inhibit the toxicity of nitric oxide-derived oxidants: mechanisms and implications
Anais da Academia Brasileira de Ciências, 2008 The substantial therapeutic potential of tempol (4-hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxy) and related cyclic nitroxides as antioxidants has stimulated innumerous studies of their reactions with reactive oxygen species.
Ohara Augusto +3 more
doaj +1 more source
Synthesis of two novel pyridine annulated pyrrolidine nitroxides
Ceylon Journal of Science, 2020 Two novel, unsubstituted, pyridine-annulated pyrrolidine nitroxides; 1,1,3,3-tetramethyl-2,3-dihydro-1H-pyrrolo[3,4-c]pyridin-2-yloxyl and 1,1,3,3-tetramethyl-2,3-dihydro-1H-pyrrolo[3,4-c]pyridin-5-oxide-2-yloxyl were synthesized in overall yield of ~15%
V. C. Jayawardena
doaj +1 more source
Electrolyte–Framework Matching in High‐Voltage TEMPO‐COF Cathodes for Lithium Batteries
Advanced Science, EarlyView.TEMPO‐functionalized covalent organic frameworks are investigated as high‐voltage cathodes for lithium batteries. Screening five electrolyte anions identifies lithium difluoro(oxalato)borate (LiDFOB) as the optimal electrolyte, balancing capacity, rate capability, and cycling stability, while buckypaper electrodes achieve high mass loading (40 mg cm−2)
Marilyn Esclance DMello +5 more
wiley +1 more source