1,720,991 research outputs found
Chromotropic guaiazulene-derived radical scavengers for the detection of oxygen-centred radicals in micellar media
No full textENDOR Determination of the alpha-Deuterium Quadrupole Tensor in the CD(COO-)2 Radical in Single Crystal.
No full textMF5 (M = Nb, Ta) as monoelectronic oxidants and precursors of innocent anions: generation of long-lived radical cations of monocyclic arenes and thermally stable arenium salts
No full textPresenza di specie coordinativamente insature in complessi trifenilfosfinici di rodio: evidenze ESR e implicazioni in catalisi
No full textRadical Species from Transition Metal Complexes. II. ESR Study of the Reaction of Alkyl-Substituted ß-Ketoenolates of Cobalt(III) with Trifluoroacetic Acid
No full textMF5 (M = Nb, Ta) as precusors of highly innocent anions: synthesis of long-lived monocyclic arene radical salts and thermally stable protonated arene salts
No full textNb(V) and Ta(V) Haloanions as Effective Counterions for the Room Temperature Isolation of Salts of Uncommon Organic Cations
No full textESR and ENDOR Studies of gamma-Irradiated Single Crystals of Potassium Hydrogen Malonate
No full textThe −OOC-ĊH-COO− radical trapped in a γ-irradiated single crystal of potassium hydrogen (KH) malonate is investigated at room temperature by ESR and ENDOR spectroscopy. The α-proton and 13C hyperfine tensors show that the free radical is oriented in the monoclinic crystal lattice with its Ċ-H bond along the twofold symmetry axis b. ENDOR spectra allow the determination of the superhyperfine interactions of the protons of neighboring molecules and hydrogen-bonded protons. The covalent character of the “very short” hydrogen bond present in the KH malonate crystal structure is discussed. An analysis of the factors affecting the intensity ratios of the two ENDOR transitions of the a proton is performed
Long-Lived Radical Cations of Monocyclic Arenes at Room Temperature Obtained By NbF5 Acting as Oxidizing Agent and Counterion Precursor
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