Results 1 to 10 of about 1,375 (174)

Cobalt(II) Terpyridin-4′-yl Nitroxide Complex as an Exchange-Coupled Spin-Crossover Material [PDF]

Crystals, 2018
Spin-crossover (SCO) was studied in [Co(L)2](CF3SO3)2, where L stands for diamagnetic 2,2′:6′,2′′-terpyridine (tpy) and its paramagnetic derivative, 4′-{4-tert-butyl(N-oxy)aminophenyl}-substituted tpy (tpyphNO).
Akihiro Ondo, Takayuki Ishida
doaj   +4 more sources

Ab Initio Study of Some Persistent Nitroxide Radicals [PDF]

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, Fabio Mariotti, Martin Quack   +2 more
doaj   +3 more sources

Adamantyl-Substituted Aminoxyls. [PDF]

ACS Omega
The interaction of perfluoroaromatic compounds with 1-aminoadamantane followed by oxidation of the formed N-adamantylanilines with meta-chloroperoxybenzoic acid led to functionalized N-polyfluorophenyl-N-adamantylaminoxyls (mono- and diradicals) in high total yields.
Kudryavtseva EN, Nasyrova DI, Korlyukov AA, Kadilenko EM, Gritsan NP, Xia D, Tretyakov EV.   +6 more
europepmc   +4 more sources

Generality-oriented optimization of enantioselective aminoxyl radical catalysis. [PDF]

Science, 2023
Catalytic enantioselective methods that are generally applicable to a broad range of substrates are rare. We report a strategy for the oxidative desymmetrization of meso -diols predicated on a nontraditional catalyst optimization protocol by using a panel of screening substrates rather than a
Rein J, Rozema SD, Langner OC, Zacate SB, Hardy MA, Siu JC, Mercado BQ, Sigman MS, Miller SJ, Lin S.   +9 more
europepmc   +3 more sources

Synergistic enhancement of electrochemical alcohol oxidation by combining NiV-layered double hydroxide with an aminoxyl radical [PDF]

Nature Communications
Electrochemical alcohol oxidation (EAO) represents an effective method for the production of high-value carbonyl products. However, its industrial viability is hindered by suboptimal efficiency stemming from low reaction rates.
Suiqin Li, Shibin Wang, Yuhang Wang, Jiahui He, Kai Li, James B. Gerken, Shannon S. Stahl, Xing Zhong, Jianguo Wang   +8 more
doaj   +2 more sources

Leveraging ligand-based proton and electron transfer for aerobic reactivity and catalysis. [PDF]

Chem Sci
While O2 is an abundant, benign, and thermodynamically potent oxidant, it is also kinetically inert. This frequently limits its use in synthetic transformations.
Jesse KA, Anderson JS.
europepmc   +3 more sources

Ferromagnetic 2p-2p and 4f-2p Couplings in a Macrocycle from Two Biradicals and Two Gadolinium(III) Ions

Molecules, 2022
A new ground triplet biradical 2′,4′,6′-triisopropylbiphenyl-3,5-diyl bis(tert-butyl nitroxide) (iPr3BPBN) was prepared and characterized by means of room-temperature ESR spectroscopy displaying a zero-field splitting pattern together with a half-field ...
Saki Ito, Toru Yoshitake, Takayuki Ishida   +2 more
doaj   +1 more source

Molecular S = 2 High-Spin, S = 0 Low-Spin and S = 0 ⇄ 2 Spin-Transition/-Crossover Nickel(II)-Bis(nitroxide) Coordination Compounds

Inorganics, 2021
Heterospin systems have a great advantage in frontier orbital engineering since they utilize a wide diversity of paramagnetic chromophores and almost infinite combinations and mutual geometries.
Takayuki Ishida, Saki Ito, Yuta Homma, Yukiya Kyoden   +3 more
doaj   +1 more source

A Triplet/Singlet Ground-State Switch via the Steric Inhibition of Conjugation in 4,6-Bis(trifluoromethyl)-1,3-phenylene Bisnitroxide

Molecules, 2023
Ground triplet 4,6-bis(trifluoromethyl)-1,3-phenylene bis(tert-butyl nitroxide) (TF2PBN) reacted with [Y(hfac)3(H2O)2] (hfac = 1,1,1,5,5,5-hexafluoropentane-2,4-dionate), affording a doubly hydrogen-bonded adduct [Y(hfac)3(H2O)2(TF2PBN)].
Nagito Haga, Takayuki Ishida
doaj   +1 more source

Terminology for chain polymerization (IUPAC Recommendations 2021) [PDF]

, 2022
Chain polymerizations are defined as chain reactions where the propagation steps occur by reaction between monomer(s) and active site(s) on the polymer chains with regeneration of the active site(s) at each step. Many forms of chain polymerization can be
Fellows, Christopher M., Jones, Richard G, Keddie, Daniel J., Luscombe, Christine K., Matson, John B., Matyjaszewski, Krzysztof, Merna, Jan, Moad, Graeme, Nakano, Tamaki, Penczek, Stanislaw, Russell, Gregory T., Topham, Paul D.   +11 more
core   +7 more sources